Jewelry Stamps: What Do They Really Mean?

jewelry stamps

Many of us have seen the small numbers or letters engraved inside a ring band or near the clasp of a piece of jewelry that we own.  But how many of us understand what information those stamps are actually giving us?

In this post, we’ll walk through the different stamps, what they mean, and what you need to know about stamping laws to ensure you’re getting the most accurate information about your jewelry.  Let’s start with the basics:

  • 10K, 14K, 18K, 24K, etc – if this is the ONLY stamp on the piece, it is telling you first and foremost that the piece is solid gold and secondly, the karat fineness of the gold.  For example, let’s look at 14K.  14 out of 24 particles in the metal are pure gold.  The others can be a mix of elements including palladium, copper, etc.  These additional elements are what determine the specific color of the gold (we’ll talk about this in an upcoming post).

    750 stamp on jewelry means 18k Gold

  • 417, 585, or 750 – this is just another way of telling us the gold content.  However, instead of referring to how many parts out of 24 are pure gold, this number is now out of 1,000.  So for 10K gold jewelry, 417 out of 1,000 parts are pure gold.  For 14K gold jewelry, 585 parts out of 1,000 are pure gold. So when you see 750 that means 18K gold jewelry because the metal is made of 750 parts per 1,000 of pure gold.
  • 900, 900PT, PT900, 950, 950PT, PT950 – all of these stamps designate that the piece is made of one of the two most common platinum alloys.  900, 900PT, or PT 900 all signify that the metal used is 900 parts per 1,000 pure platinum, while 950, 950PT, and PT950 denote 950 parts per 1,000 are pure platinum.
  • 925 – a piece with this stamp is made of sterling silver. Legally, to be considered sterling silver a piece has to consist of 92.5% pure silver, with only 7.5% other elements mixed in.
  • GP – pieces with this stamp have been plated with gold, but have another metal underneath. It almost always has the karat fineness of the plating listed, i.e. 18K GP.
  • HGE – this is the abbreviation for high grade electroplate, which is another way of denoting that the jewelry you are looking at is not solid gold. These pieces also generally display the karat fineness of the gold.
  • GF – this stands for gold-filled, which is a term that means a thin layer of gold was bonded to a base metal to make this piece.

So now that we have the basic stamp meanings down, let’s go through some of the most frequently asked questions that we hear from customers:

There’s another symbol next to the metal content stamp that isn’t on your list. What does that mean?

Most likely, the stamp you are seeing here is the manufacturer’s trademark or the trademark of the retailer selling the piece.  This is legally required if the item is stamped and serves as a guarantee of sorts that the manufacturer/retailer vouches for the accuracy of the stamp on the metal.

My jewelry piece isn’t stamped at all.  Does this mean it’s not made of precious metal? 

Not necessarily.  The legal guidelines on stamping don’t require all pieces made of precious metal to be stamped.  However, they do require the manufacturer or retailer to disclose any precious metal content.  This could be via discussion in the store upon purchase, on a tag attached to the piece, or on the receipt for the product itself.

The clasp/closure/earring backs on my piece are stamped, but the rest of the item is not.  Does that mean the whole thing is made of precious metal?

Again, not necessarily. Sometimes the clasp of a piece is made of a different metal than the chain, so definitely confirm with the store clerk or jeweler that the entire item is made of the metal from the stamping.  Likewise, earring backs may have been accidentally swapped and may not be made of the same metal as the rest of the earrings, especially the posts, so double checking is always best.

My piece has a name/date engraved on it.  Is this the designer or year that the piece was made?

For well-known brands and designers, this can be the case, but it isn’t necessarily a correct assumption.  For example, Tiffany & Co. has several Paloma Picasso designs that would be engraved as such and may include the date.  However, it could also be that the piece is vintage or estate and was engraved with the previous owner’s name, anniversary, etc.

What other questions do you have about jewelry stamp meanings?

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461 Comments on “Jewelry Stamps: What Do They Really Mean?”

  1. I have a 10 k gold stamped ring. It also has another stamp that looks like YL or if looked at the other way could be 7h. What does this other stamp mean? How do I know if the diamonds are real?

    1. Hi Samantha,

      From talking to our expert Jewelers, the stamp is most probably YL and is a jewelers signature stamp we cannot tell you much more than that. In order to truly determine whether the diamond is real, you will need to get it tested with an appraisal.

      Hope this helps!

    2. Samantha,

      I have a bracelet charm which dates back to the 1930s or before (possibly long before), which has a mark like that, a figure after 14k. It turned out to be some kind of trident hallmark with a curved fork part, and not numbers. I have not yet been able to find out which company had that hallmark, but I have seen it on other pieces I inherited.


  2. I have a wedding ring from a grandmother and it has the 14k but after that it says “customized”. What does that mean?

    1. Hi Hope,

      “Customized” could mean a few things:

      • It could be that the ring was altered from the original,
      • It is not a standard metal or design,
      • It is an abbreviation from the original.

      Every jeweler likes to put their own twist on their work, so we don’t know for sure!

      I hope this helps!
      Chiara 🙂

    1. Hi Mel,

      W302 refers to the manufacturer’s trademark and the 14K means that the piece is 14 karat gold.

      I hope this helps you!

        1. Hi Christine,

          The 15C could indicate 15 karat gold, or 62.5% gold content. This particular gold content value is often seen in older British jewelry.

  3. Hi, I have a piece marked TCPA/IC. That is the only marking. Would you be able to tell us what this means? Thanks!

    1. Hi Joan,

      We need a bit more of information to give you a better answer:

          Does your ring happen to platinum?
          Are there any other inscriptions next to the numbers?
    1. Hi Jade,

      We have seen silver vintage pieces from Canada labeled with CA 925 – hard to tell for sure but that could be it.

    2. I use what I was told was platinum and diamond. The Mark’s are 14i and a lowercase g*. That’s all I find

      1. Hi there,

        Are you sure it says 14i instead of 14k? 14k indicates 58.3% gold content. The g* is most likely the manufacturer/designer stamp.

    1. Hi Desiree,

      Would you be able to provide some more information for me to help identify the stamp? I.e. what material is it, and is there anything stamped on the inside of the ring band?


    1. This most likely will be a jewelers trademark stamp as it isn’t a standardized stamp referring to materials or quality of materials.

    2. KCL is the company who made the jewelry. It seems to be from the 1950’s or so. SterSil is short for Sterling Silver.

  4. Hi have a broach with the number 800k it’s very old and possibly made in Germany. What does this mean. Thank u regards Pepi

    1. Hi Pepi!

      With the help of our expert jewelers, we believe that the stamp on your brooch is a jewelers trademark which can be very difficult to trace especially if the piece is very old! If it is old then it might need to be polished to clearly see what the stamp is, as it might be something different.


      1. What is the meaning of 3 and 4 dots
        Inside the ring there is no other number or letters its only a dots it only realy like this ( …. )
        Maybe someone knows about it thank in advance for the answer’s

        1. Hi Mary,

          They don’t indicate metal content, so it could be either a personal inscription (if this was a secondhand/pre-owned ring) or the manufacturer/designer’s stamp.

  5. My gold bracelet has 074 above the 14K stamp. I have search the web and can’t find out what 074 means.

    1. Hi Jim,

      I have consulted our expert jeweler about your stamp, and 074 doesn’t have any significance to the ring, instead it is most likely going to be a jewelers trademark stamp.

      I hope this helps and if you have any more questions please let me know!


  6. Hi, we have had a ring handed down to us, and on the ring it says 10K and what looks like three letters TWD ( I think ).. Wonder if you could shed a little light on those three letters?… Also we are deciding whether to get the ring valued…many thanks ~ andy

    1. Hi Andy!

      It looks like TWD is a jewelers trademark stamp upon checking with our expert jewelers, and has no significance to the quality of the ring. However an appraisal is something I can help you with, a ring appraisal is beneficial as it is required for insurance purposes and to know the retail market value of your ring if you were to sell it. If you are still on the fence, here are some thoughts to consider about jewelry appraisals

      I hope this helps and please let me know if you have anymore questions!


  7. I have a pair of ear rings with a D stamp on the back and also a ring that looks like it has a small heart on the inside of the band any clue as to what they mean?

    1. Hi Becca!

      So upon talking with our expert jewelers, neither of those embellishments are relating to your jewelry quality, instead it will most likely be a jewelers’ trademark stamp.

      Please let me know if you have anymore questions!


  8. Hi, I have a hand me down ring that has 3 gems & is sterling silver. It has a stamp MKV on the inside. Any idea who the jeweler is?

  9. Have MTXX stamped in the back of 2 Older silver earrings for a school teacher It has 123 ABC a book , peculiar and apple on the earrings, What does MTXX mean please?

    1. Hi Timothy,

      Yes, that is correct! 18Y is one variation of the stamp that is used to represent 18k yellow gold; sometimes it’ll look like 18K, 18KT, or 18Kt.
      I hope you find this useful; let me know if you have any additional questions!


  10. Hi! I have a ring that has 258 T stamp on it. I am not so sure about this since it was just given to me. There are also no other engravings on it. Can you tell me more about this?

  11. I have a pendant (set with a small gem) with the following stamped on it: 925 HDIAM
    I know that 925 means that it is sterling silver. Does the DIAM indicate that the gem is a diamond? If so, what does the “H” mean? Or is HDIAM a jeweler’s trademark?

  12. I am considering buying a ring that is stamped k18 0.43 and either WG or WB. I’m being told it is solid white gold 18 karat and that the 0.43 stands for the diamond carat weight. Does that seem correct?

    1. Hi Heidi,

      The circled c can mean several things depending on the age of this particular ring. If it’s from the 1950s and up, the circled c most likely indicates that it’s a copyrighted item. If it’s even older than that, it could be the trademark of the producer. Let me know if you have any additional questions!


        1. I’ve never seen a % stamp on a ring like that. It might indicate the metal content, but that doesn’t seem legitimate.

  13. I have what I believe to be a silver charm bracelet. The jump ring is stamped 976 and on the other side just the letter A (not A1 to indicate silver plated), what does the “A” indicate? Thanks!

    1. Hi Jay,

      The A is most likely a trademark stamp, since the 976 indicates the purity of the silver. Let me know if you have any other questions!


  14. I found a ring that has a green stone and unique artistry around the stone. Looks very old and I had to clean and polish it several times to start seeing the Silver. I finally saw an engraving on the backside of the ring and it spells out “STERLING” all caps and a “S” with a line going thru it. Can you please help me out with some information….thank you

  15. I have a stainless steel dog tag necklace.
    On the back says TSD. Any help about this would be greatly appreciated. Thanks!

    1. Sounds like it’s 10 kt gold made in Turkey & the SR could be the maker name .. look up Turkish jewelry marks with those initials ☺️

  16. Hello, I have a bracelet with making 10k on one side of and JRW on the other, what does JRW mean? Thank you in advance

  17. I have a charm of mother Mary holding Jesus well I can’t barely see the engravings but it looks like u18or something Hong like it I have a pic close up but can’t seem to send it here can u possibly tell with it

  18. I have a pair of earrings that have a 45 stamped on the inside of them and I can’t find what It means. Can you please help me out?

  19. I got a ring with the number 10 inside, but no other markings or letters… do you know what this is?

    1. Hi Shayla,

      If the item is gold that probably means 42.5% gold.

      Let me know if you have any more questions!


  20. My mothers sapphire and diamond ring also has the marks PLR and PMS8 (or could be a B) stamped on it as well as 375 which I know about. What do the first letters mean please. I don’t wear the ring as it’s a bit of a knuckle duster!

  21. I was given my mothers ring when she passed away 8 years ago. This ring is gold with 4 slightly large stone in the middle and 14 smaller stones around them. Inside the band on one side it has LOI3 and on the other side it has 14KP. The rings stones all make it look like a rounded marquise shape. Could you tell me what all it means?

    Thank you

    1. Hi Sharon,

      This is pretty cool! If your pendant is old, the 7970 might be a patent number that corresponds to the year 1875. As for the C in a circle, that’s a copyright symbol.


  22. I have been left a ring that has 10 small dimmonds inside it says 18ct fine plat with the numbers 7449 is this real?

  23. I have an ear ring that has two marks on it one us in a circle and looks like a s and a backward j almost a u. The other is a TH all by itself. I hope its good but I’m not sure.

    1. Hi Jackie,

      Going off your description, it could possibly be from Thailand (due to the TH) or manufactured by the International Silver Company if your item is silver. The backwards j might be a rubbed out C.


    1. Hi Ravit,

      The YS may be a designer mark or a term describing the metal, I’d have to know more about your ring to tell you. Italy is most likely the place of origin.


    2. I have a bangle in a very dark gunmetal colour. It’s Solid Silver. Inside it has. LetterT in a circle. Who’s make is it

      1. Hi Patricia,

        That manufacturer’s stamp has been used by both high-end jewelry manufacturers and artisans. If you can provide more detail about its approximate appearance and age it’ll be easier to narrow down who made it.

    1. Hi Shannon,

      The s/c might be Sarah Coventry, especially if there’s a copyright symbol as well.
      Let me know if you have any other questions!


    1. Hi Bonnie,

      THL is the stamp of the manufacturer, most likely Samuel Aaron. Let me know if you have any more questions!


    1. Hi Fiona,

      042 doesn’t seem to correspond with any known metal stamps, so it’s probably a designer mark. Let me know if you have any other questions!


    1. Hi Jerry,

      925 means sterling silver. As for the 6TB, it’s the designer/manufacturer’s stamp. Let me know if you have any other questions!


  24. I have a chain that is written like MJ5 or MJs it’s not visible, and also has a stamp written 226. It’s very confusing which metal it is, can’t find even in the internet too.

    1. Hi Tokato,

      The MJ5 is probably a designer trademark. As for 226, that is a platinum stamp that is no longer in use. Let me know if you have any other questions!


  25. I have come across a 10k gold ring and the stamp sez incase then a U with an arrow through it, 10k SE

    1. Hi Bob,

      Sounds like it’s an Uncas ring. They used that particular trademark from 1920 to the 1980s, and they’re still in business today. Let me know if you have any more questions!


  26. The ring I have seems to be dark green torquise, silver with a bird symbol and two diamonds and a 3 stamped on the band. I’m from the NW. Native American or maybe Alaska Ring? How do I research?

    1. Hi Cheryl,

      That does sound like Native American/Southwestern inspired jewelry. There’s also a possibility that it might be Mexican since you said it’s silver; if the bird shape is rather eagle-like this item could be from the 1940s-1970s. If you want to find out more, there are groups you can join on Facebook that specialize in trading and identifying Native American/Mexican silver jewelry.


  27. I have a ring with NRT and the number 7 stamped on a silver looking ring with a diamond looking gem. What does that mean? (I’m kind of assuming the ring isn’t real but I’d like to know what the markings mean.)

    1. Hi Kira,

      NRT is a stamp associated with Avon. Based on your description, the ring is most likely costume jewelry, which Avon is famous for producing. Let me know if you have any more questions!


  28. I have a ring with three markings, 925, Mexico and TD=207. I can’t figure out what TD=207 means. It might also be TO=207.

    1. Hi Ranae,

      Based on your description, your ring is 925 sterling silver, from Mexico. The TD-207 is a specific mark system that was established around 1979. The first letter, T, stands for the city in which it was made, which is Taxco. The second letter is the first letter of the smith’s last name (in this case D or O) and the 207 is his assay number. I hope that helps; if you would like to get a value for the ring you should check out our jewelry appraisal service! Let me know if you have any more questions.


    1. Hi Mitchell,

      That sounds like the designer trademark instead of a metal stamp. Are you sure it’s just ENT? There’s a jewelry manufacturer called MJ ENT; they produced a lot of vintage costume jewelry. Let me know if you have any more questions.


    1. Hi!

      10KT YG is a stamp that means 10 karat yellow gold. In other words, your item is 41.6% yellow gold.


  29. Hi,

    My engagement ring is circa 1910 and has 899 engraved on the inside, the antiwue shop owner didn’t know what metal it was. Can someone help?

    1. Hi Kylie,

      Could you provide more information about your ring? What color is the metal? If it’s silver-colored the 899 may be a reference to the silver content within the ring, which would be below sterling silver (925 or 92.5% silver.) From what I know, this could possibly indicate Italy as the country of origin.


  30. I have a Tennis Bracelet marked “AB” and right below it is a number “1197” what does this mean?

    1. Hi Rachel,

      That would depend on the approximate age of your bracelet. Does it look old? 1197 is a maker’s stamp that has been used for both high-end and costume jewelry by different manufacturers.


    1. Hi Robert,

      There are several jewelry manufacturers using that as a maker’s stamp. Is the piece costume or fine jewelry? That might help you narrow down where it was produced.


    1. Hi Christopher,

      Monet is a jewelry manufacturing company that’s been around since 1927; they produce a lot of costume jewelry. Depending on how the stamp looks you may be able to date how old the piece is. If it has a copyright symbol next to it, the chain was probably made after 1955.


  31. Hi ,
    I have a ring that says di 14k on the inside. I know what the 14k means but what does di mean? Is that just someone’s initials ? I’ve tried looking online but with no success.

    1. Hi Rochelle,

      Interesting…It’s most likely the maker’s stamp, but for it to be 14k that’s fine-quality jewelry and the mark should be somewhat traceable. It could be a lesser known artisan or from another country. If the stamp looks “handwritten” or rough it might be a indication that this is a artisan piece.


    1. Hi Louie,

      That could depend on what metal your ring is. If it’s silver, it may be from a manufacturer in Italy.


    1. Hi Lori,

      The 14k means that your item contains 14k gold, or 58.3% gold. The 1-10 may be an indicator that your item is not solid 14k gold, but 14k gold-filled. This means that your ring is probably made out of a cheaper base metal that is covered with a layer of 14k gold.


    1. Hi Jade,

      The 24k stamp indicates 24K gold, which is pure gold and extremely soft. If I’m understanding you correctly, it doesn’t seem to be practical to have a pair of tongs made out of soft gold. Your item is probably not solid 24K but plated with 24K gold.


    1. Hi Jessica,

      Could you provide more information about your item? The meaning of the stamp may depend on what metal it’s made out of.


  32. Looking at a necklace that is claiming to be gold filled and has a stamp ’24KG’ with no extra letters like listed above. Thoughts?

    1. Hi Danny,

      That could be a legitimate claim; 24k gold is pure gold and it’s rare to find items made from solid 24k gold because it’s too soft for practical, everyday use. If it’s used for gold fill, however, that makes more sense because it’s essentially a layer of gold on top of a sturdier base metal, like sterling silver or an alloy.


    1. Hi Sara,

      925 is the stamp for sterling silver, which means that your ring is 92.5% silver.


  33. What does VE stamped inside a gold band with a rain drop diamond mean? Is the ring not made of gold?

    1. Hi Missy,

      Could you give me more information about your ring? VE sounds like it’s the maker’s stamp instead of a metal indicator. Are there any other stamps inside the ring?


    1. Hi Aaron,

      That is a maker’s mark that is used by several designers who have the initials SG. If you can provide more information about your item we might be able to narrow it down and make an educated guess.


  34. I have a piece marked SRB 14k SR 4K 14k L ( I believe its an L, forgive my ignorance) what does this all mean pieced together? Haha.

    1. Hi Evie,

      Wow, this is quite a bizarre one; it’s very rare to see so many stamps, especially redundant ones. The 14k means it’s 58.3% gold (white, rose or yellow depending on the color of your item), but it’s odd to see it repeated twice. The 4K is unheard of- my guess is that it’s supposed to be another 14k stamp that was misstruck and left out the one in front. As for the other marks, they could be the maker’s mark. I think the second SR could be yet another SRB that was also misstamped like the 14k after it. The L could be an indication that this item was made in Italy, but this also means that the item might be a counterfeit. I would get this metal tested to see if it is in fact 14k gold.


    1. Hi there,

      M.K. is a common manufacturer’s stamp used by several companies. Could you provide more details on your ring, like the type of metal and the design?

    1. Hi Rose,

      STC is a pretty common manufacturer’s stamp, but if your item is sterling silver it may be from the Skyway Trading Company.

    1. Hi Tiffany,

      14k is a reference to your item being made out of/or containing 14k gold, or 58.5% gold. The SC is a manufacturer’s stamp or a brand stamp; are you sure it’s two SCs instead of one? SC is the stamp used by Sarah Coventry around 1950; the brand was well-known for producing both fine and costume jewelry.

    1. Hi Denise,

      If they’re gold, that is a mark for 9 karat gold or 37.5% gold content. In the US this cannot be legally sold as “gold” since US standards set the minimum as 10 karat to be a substantial gold alloy.

    1. Hi Jessica,

      14kt means 14 karat gold or 58.3% gold content. F.D. is a common manufacturer’s stamp that is used by several companies; figuring out the age of your item might narrow down who made it.

  35. 10kp /925 it’s xo necklace with sliver hearts I hope kp don’t mean plated and if not is the whole necklace sliver ?? Cuz I only see little bit of sliver but I know that don’t mean much

    1. Hi Amber,

      10kp means 10k gold karat plumb. This term refers to the exact purity of the gold; 10k is 41.6% gold so the KP indicates that your necklace contains a gold content of 41.6% or higher. The 925 means that your item also contains sterling silver. Based on your description, this necklace is gold vermeil, which is a specific type of plating. An item can only be called gold vermeil if the base metal is sterling silver.

  36. I have a Ring with stamped G750, Its stand for 18K Gold but on the Ring another stamped 4.790 ct and Do.071ct, Can anyone help me to find out what us this ?

    1. Hi Raja,

      It sounds like you have an item that has stone stamps inside of it. You’re correct about the 750 for 18k gold; the other numbers are the carat stamps for the stones set into the item.

    1. Hi there,

      PE doesn’t indicate anything about the metal, it’s probably a manufacturer’s stamp.

    1. Hi Emma,

      This necklace is sterling silver (92.5% silver) and was made by Jacmel, a jewelry manufacturing company that has locations around the world.

    1. Hi Shelia,

      The D is most likely a manufacturer’s hallmark; it doesn’t indicate anything about the metal.

  37. How should the tag of a 14K & 18K vermeil piece of jewelry be stamped? Should the tag be stamped 925 because it’s sterling silver underneath the gold overlay? or should other numbers/letters be stamped on the tag to show there’s gold over the sterling silver?
    Best regards,

    1. Hi Debbie,

      Does the piece of jewelry contain both 14K and 18K gold? Normally, a piece of gold vermeil jewelry will have one type of gold, so the stamp will be 925 18K. I’ve also seen pieces with the stamp VERMEIL (the karat gold is optional, but some stamps will indicate it like 10K Vermeil.)

    1. Hi Noel,

      18k means 18 karat gold, which is 75% gold. C is most likely the manufacturer’s mark.

    1. Hi Larry,

      10 and NRI do not correspond to any metal stamps. They’re probably the manufacturer’s stamps.

  38. I have a gold necklace with pendant. Only M and diamond above it as a mark. Can you tell me meaning of that?
    Thank you in advance

    1. Hi there,

      It’s hard to tell without a picture, but this stamp could indicate either Jensen Designers or Marathon Company as the manufacturer.

  39. I have a gold, diamond ring and the only things that are stamped on the inside is 10(no K after) and on the other side is the letters AN. I also have 5 other rings that have little ingraved pictures in them. I can send pictures, really need help.

    1. Hi Lindsey,

      Unfortunately the AN stamp has been used by many designers and manufacturers; it would be difficult to assess which one made the ring without seeing the actual piece. As for the other 5 rings, they may be British or generally European in origin if they’re fine jewelry. Marks from the UK use many pictures to indicate metal type and location- for instance, a sterling silver ring created in Birmingham will have a lion passant stamp for the silver, and an anchor stamp for Birmingham.

      1. I appreciate your reply and has really informed me. What about the 10 without any letter after it?

        1. Hi Lindsey,

          It’s not uncommon for a stamp to be poorly struck onto the metal or wear off over time. Since you said it was a gold ring, it probably was supposed to say 10k to indicate 10 karat gold content, or 41.6% gold.

    1. Hi Isha,

      Sounds like your item is sterling silver; the 5@ is most likely a manufacturer’s stamp because it doesn’t indicate anything about the metal.

  40. I have a gold plated 18k chain but it has like 2 g od it like back to back from eacj other want to see what that was bout if anyone xan help

    1. Hi Junior,

      I’m afraid I don’t understand what you mean; are you trying to say that it has two types of gold, or two g stamps? Please clarify and then I’ll be able to help you out.

    1. Hi there,

      That’s interesting, usually a hallmark would just be a symbol or letters indicating the type and purity of the metal. I’m not too sure why it just says HALLMARK without giving any details about the item; possibly a knockoff or costume jewelry?

  41. My ring is stamped with 10kt and also the word vellmar on the inside I know what the 10kt stands for but I don’t understand what the vellmar stands for can someone explain to me what it means or the meaning of it please and thank you

    1. Hi Tiffany,

      Vellmar is the trademark of a jewelry wholesaler called Norvell Marcum, from Tulsa Oklahoma.

    1. Hi Carl,

      That stamp most likely indicates 14k gold bonded, which means that your item is not made out of solid gold, but rather a layer of gold over a cheaper base metal.

  42. hi I was woundering if you could help me, I have a gold bangle bracelet that says 14kRD. would you be able to tell me what the rd means? does it mean its plated??

    1. Hi Ashley,

      If your item was gold plated it would probably say 14k GP instead of RD. My guess is that RD is the manufacturer’s stamp.

  43. Hello, I have an Omega watch from 80`s, and behind it has a stamp ”784”. color is silver. can you tell me what would that mean?

    1. Hi Dzovan,

      That number doesn’t say anything about the metal type. Watches are a bit peculiar when it comes to stamps; that could either be a model number, or it could indicate the caliber of the watch.

  44. Hello, I was given a ring from my great grandma after she passed. The stamp on the inside says *GOTHIC 14k
    Wondering what *GOTHIC means. Is it a style or the manufacture?

    1. Hi Sarah,

      Gothic is the stamp of the manufacturer Kinsley & Sons Gothic. This company was founded by Felix Kinsley in the 1900s, and is still in operation today.

  45. My ring says 14ks on one side and 560 on the other side (inside) what does that mean? Supposed to be real white gold.

    1. Hi Damacio,

      The stamps on your ring could mean a variety of things; I highly suggest getting it tested to see if it’s actually genuine white gold.
      14ks usually means gold plating over sterling silver. Your item may not be solid white gold, but rather 14k white gold over silver. The 560 is a manufacturer’s stamp; it could be the registration number of a company in Italy called Nichol which is known for creating silver jewelry.
      Alternatively, 14KS is also the trademark for a company in Los Angeles that also makes silver jewelry.

      If you want to get a real estimate of what your ring is made out of and how much it’s worth, take a look at our appraisal service!

  46. I have what appears to be a white gold or sterling silver ring the only marks I can find in it is the number 8 what does this tell me about my ring

    1. Hi Joe,

      That could be an manufacturer’s stamp or (in some cases) the size of the ring. It doesn’t indicate anything about the metal.

  47. Hello, Great site! We just found what could be a diamond earring in our house. The marking on the stem says “INV 14K”. It’s white gold/silver colour. We know what 14k means, but what does the “INV” mean? Is it the Manufacturer?

    1. Hi Trevor,

      Could you provide more information on what type of metal your item is and the approximate age? It’s rare for a piece of jewelry to have the number 14 as a stand-alone, usually it should be 14k to indicate 58.3% gold.

    1. Hi Billy,

      That doesn’t seem to correspond to any metal stamps. It’s probably the manufacturer’s signature.

  48. I have a possibly vintage gold ring. Its 2 stone and has 14k stamp with two diamonds side by side. One of the diamonds has the letter K and the other diamond has the letter B inside if them. It also has another 14k stamp with what looks like a KA stamp it’s hard to tell because the the A is part of the K. I hope I explained that well enough for you to understand. I cant find anything to help my identify the stamps. Any help is much appreciated. Thanks!

    1. Hi Megan,

      That certainly sounds unique! The stamps sound like they’re manufacturer’s stamps (aside from the 14k). We would have to see the ring and its design in order to determine its age, which would help narrow down who made it and when.

    1. Hi Victor,

      That doesn’t indicate anything about the metal. It is probably the manufacturer’s stamp.

    1. Hi Keem,

      14k means your item contains 58.3% gold. The PLT could be the manufacturer’s stamp, or an abbreviation for plated.

    1. Hi Joan,

      That stamp doesn’t indicate anything about the metal of your jewelry. It’s probably the manufacturer’s stamp.

  49. I have a fob chain with free moving T-bar and the only stamp that I can find is in the Albert clasp, st6-923. What does the stamp numbers mean?

    1. Hi Sally,

      This is difficult to determine- is your piece vintage? What color metal is it? The stamp numbers may mean a variety of things without an approximate age to narrow down options.

      1. It is a silver Fob. Not sure of the age as I picked it up at a secon hand store. However, it is heavy.

    1. Hi Laura,

      Your item was made in Germany, from the looks of it. This tends to be a more vintage stamp but we would need more information about the type of chain and the metal in order to give you a better approximation.

  50. Very nice & helpful site. Thank you, I’ll be referring to it again, most likely. However, I couldn’t find the answer I was hoping to find. I have a ring that is stamped K80. Might you know what it means? Might it mean it’s 80% pure gold? I have acid testers for 10,12,14,18 & 22K gold, but if it’s 80% gold none of my acid test will likely work on it. Anyhow, any help/advice would be appreciated, greatly. Thank you & many blessings to you & yours in 2019.

    1. Hi Mark! We’re happy to hear that you like our content 🙂 K80 does not correspond to any standard metal stamps; it is probably a manufacturer’s mark.

  51. It is a silver Fob. Not sure of the age as I picked it up at a secon hand store. However, it is heavy.

    1. Hi Tylor,

      52 doesn’t indicate anything about the metal, so it’s probably the manufacturer’s stamp.

    1. Hi there Wanda,

      From what I understand of your comment you’re trying to ask about the meaning of BDS, GRNS, and LAB as stamps? Could you provide more information on what your item is, it’s difficult to determine without more context.

      1. Sorry. I was in a rush at the time. I work in a jewellery counter and we receive jewellery with abbreviations as descriptions for each individual piece. [ ex. RHDM = rhodium (plated), SW = swarovski zirconia, SQR = square, ITA = made in Italy, MNSTN = moonstone. ]

        I am searching for what BDS, GRNS, LAB might mean.

  52. I have a silver fob chain with free moving T-bar and the only stamp that I can find is in the Albert clasp, st6-923. What does the stamp numbers mean? Was purchased from a second hand store so not sure how old it is. However it is heavy.

  53. Hi, my Goddaughter has taken her Mums wedding ring into a local Jewellers to be sized, as her Mum has recently passed away very suddenly, and she would like to be able to wear it. After inspecting the ring,to see hallmark etc, the jeweller said that there was an inscription on the band, but in 12 years in the jewellery business, she had never seen anything like it. the inscription was not written but stamped onto the band. The inscription reads ‘LUCKY’ this upset my Goddaughter, as neither her or her Sister were aware or it. My Goddaughter has contacted me as we are all very close, to see if I could shed any light on it. I can’t, and I don’t even know if her Mum was aware it was there. As sometime ago she herself spoke to me about having the ring sized down as it was too big for her. If she had been aware of this inscription, she would have mentioned her concern to me or her Daughters re losing it if the ring was altered. Can you shed any light on this stamped inscription. The ring was purchased in England, in 1970, from what would have been a local jeweller.
    We are all intrigued about this and would be grateful for your help TY Maura Cripps

    1. Hi Maura,

      Based on your description the ring is probably from H. Samuel, a jewelry company that was founded in Liverpool, 1862. The LUCKY stamp seems to be consistently used with the time period you mentioned (late 1960s to 1970) and may be the stamp of the manufacturer that made the jewelry for H.Samuel.
      The jeweler should be able to resize the ring without removing the LUCKY stamp, unless if your goddaughter is significantly sizing down. If your local jeweler is having issues with it, you can send it over to us, as we can provide alternative sizing options that will preserve the interior marks.

  54. I bought a what appears to be a silver ring but I don’t know what the stamp means. It looks like a star inside a circle and has TC next to it.

    1. Hi April,

      The star inside the circle could indicate that this piece is from Laila Rowe, a company known for costume jewelry. They’ve been closing up shop in the last few years and I’m not entirely sure if they’re still in business. The TC could be the manufacturer who made the items for Laila Rowe’s designs.

  55. I have a diamond mens ring that looks to be white gold. Has 14k ML and maybe an 8,E or B. The last digit seems to be stamped deeper(?) than the others but that could be only perception. Is this 14k gold or costume jewelry?

    1. Hi Junior,

      It sounds like your item contains 14k gold; however, this could also mean that it’s simply plated with 14k gold instead of being solid. You can send it in to us for a metal test if you want to determine whether or not it’s fine jewelry.
      The ML and the additional letter is probably the manufacturer’s stamp and either a designer’s stamp or a size indicator (if it’s 8)

  56. Help idk what the meaning of these stamps are nor can i completely read one set of the numbers / Nd or letters partly at fault being stamped right directly on top of the 14 kt stamp and on top is what appears to be a very small and delicate possibly even hand drawn heart that is so very tiny and thin may even say Mary but then engraved as one piece it says 27 the numbers and on the other side of the band is some type of a very badly worn symbol may be a circle but i believe it’s a unrecognizable worn heart and there in the middle is a tiny little dot of red paint and no I assure u it didn’t accidentally get on there and hasn’t worn off yet it’s not coming off,lol help me plz ro identify its origin

    1. Hi Tara,

      I’m afraid it’s rather difficult to determine the meaning of the stamps on your ring without a picture. Keep in mind that jewelry is often passed down from person to person, so it wouldn’t surprise me if your item was modified by previous owners, especially since you mention hand-drawn symbols and names. It’s common to find engravings on older pieces of jewelry, and it’s near-impossible to find out any information about who engraved it or why because there won’t be any historical records to reference.
      The ND on top of the 14kt stamp may be a manufacturer’s stamp, however.

  57. Hi. My diamond band is stamped SDL 14k on the inside. I understand the 14k is the metal content but I’m not sure if the SDL is a manufacturer stamp? Do you know what this means?

    1. Hi Erin,

      SDL is a manufacturer’s stamp for SDL Jewelry; they specialize in sterling silver and 14k gold, and they’ve been in operation since the early 1910s.

    2. Hi Erin,

      SDL is a manufacturer’s stamp for SDL Jewelry; they specialize in sterling silver and 14k gold, and they’ve been in operation since the early 1900s.

    1. Hi Mary,

      830 has been used to indicate either 20k gold or silver (of either Norwegian or Scandinavian origin).

    1. Hi Kevin,

      It’s probably the designer/manufacturer’s stamp, since you already know that the ring is 10k gold.

  58. Have a ring looks like small diamonds in it. It is stamped
    14K-18K C
    Can you tell me what that means thanks tamra

    1. Hi Tamra,

      That’s highly unusual to have a range for gold; the 14K and 18K mean 58.3% and 75% gold. My guess is that the ring either contains two types of gold in different locations (especially if it’s two-tone colored) or it may not be legitimate jewelry.

    1. Hi Michelle,

      10K indicates 41.6% gold content, and the QTR is probably the manufacturer’s stamp.

    1. Possibly the manufacturer’s mark, since the 10K indicates the gold content. If it had said “1/20” I might’ve guessed your item was gold-filled instead of solid gold (so 1/20 gold content), but the D changes the mark completely.

    1. Hi Kelvin,

      It doesn’t seem like it indicates gold content; otherwise it would’ve said 12k instead of 12.5. Probably a manufacturer’s stamp.

  59. Hi Annabelle:

    I have a bracelet with yellow metal looking like gold with a mark 713S and the marquis stones looking like diamonds. It is very well-made. Hope it is real but not sure? Curious in finding out what the mark “713S” or “735” (cannot make out – hard to read) means? Thank you for helping shed a light into this piece.

    1. Hi there,

      Neither of those marks seem to correspond to any known metal stamps, so they’re probably manufacturer’s stamps. You can try getting the bracelet metal tested to see if it’s a legitimate piece of fine jewelry; we also offer appraisal services for the gemstones.

  60. I picked up a bangle and on the inside it has three different marks – the first is PB the second is 22A and the third is RT.
    What would each marking stand for? Thanks for your assistance to understand jeweler’s marks

    1. Hi Mel,

      You definitely have a strange piece there; none of those marks are metal stamps, and all of them correspond to different manufacturer’s marks. For instances, PB has been used by designers such as Paul Brackna, and RT is a common trademark of several manufacturers as well. I think you’ll need to look at the metal type and the style of the bangle to narrow down your options.

  61. I just purchased a pair of hoop earrings. They were labeled online as “Solid 14k Rose Gold”. The stamp says “14K S”. What does the “S” stand for?

    1. Hi Jessica,

      Probably the designer or manufacturer’s trademark, since the 14k is the metal stamp.

  62. I have a ruby ring the only marking in the band is RBP it is either silver or white gold. Can you help me?

  63. I purchased a vintage aquamarine ring with the marking “ PLAT APPL’D”. Any idea on what this means? There were other markings, but too faded to make out. Thank you for any insite you may be able to provide.

    1. Hi Natasha,

      Are you sure there’s an L in there? PAT APPL’D is a more common stamp that indicates a patent was applied for the company/item. I’ve seen this stamp on items dating from 1850 and up.

      1. Thank you Annabelle, upon a second examination, you are correct it’s PAT APPL’D and I noticed an additional mark of what I believe is UR. Would the UR indicate the maker’s mark? I looked up old jewelry patents and I could not find the one for my ring. It’s been fun researching and thank you for pointing me in the right direction.

        1. Hi Natasha,

          Yes, the UR is most likely the manufacturer or designer’s mark. It may be difficult to find the patent since you’re combing through records from 1850 to approximately 1940s-1950s! That’s quite a span.
          The style of the ring might be able to help you narrow down the time period, however. There were several distinct art styles that were dominant during those years: Victorian, Edwardian, Art Nouveau, Art Deco, and Retro. Each of them had their own style of settings, preferred stones (and stone cuts) and metals. I’d suggest looking at sample pieces to match your ring to a particular period.

    1. Hi Fatima,

      Sounds like it could be Oroamerica’s mark, they were a manufacturer that later merged with another company called Aurafin.

  64. Hi anabelle..
    I have a silver bangle which says a small circled c then num 24 inside a diamond then a capital L..
    The bangle has no scratches and is encrusted with tiny stones..
    Would they be diamonds?

    Regards Gina

    1. Hi Gina,

      The circled c is a stamp indicating copyright, which means that your item was definitely made some time after 1955 when the US passed copyright laws for jewelry designs (so it’s not going to be an antique piece!) Unfortunately many designers have used the diamond shape/jewel shape for their trademarks, so I’m not able to determine which one manufactured your item.
      It seems likely that your piece is costume jewelry given this information, so the tiny stones are probably faux gems.

  65. I have a ring given to me by my grandmother and on the inside is stamped 10k that has a c with a diamond symbol beside the c… any ideas?

    1. Hi Carie,

      10K indicates 41.6% gold content, while the c and the diamond symbol are probably manufacturer/designer marks.

  66. Hello, I have a brooch in shape of grapes with little stamp on it’s back in the shape of dolphin. I bought it in Israel in 1991 – 1995, don’t remember exactly what year. Do you know what company made jewelry with this stamp?

    Thank you.

    1. Hi Anna,

      The only designer I know of that has a similar mark is Hans Jensen, but that’s Denmark-based. If your item is artisan jewelry, there may be no official records as to who the stamp belongs to; many artisans merely stamp to mark the item as their creation but do not register for an actual trademark.

  67. Hi!

    I got a ring at an antique shop with markings on the inside of the band that say “4K10.” I’ve searched the internet, and I’m having trouble getting clarity on what this could be. The sales associate at the shop wasn’t sure what the markings could mean.

    Do you have any suggestions on what metal it may be?

    Thanks in advance!

    1. Hi Carolyn,

      4K10 doesn’t correspond to any known metal stamp, so it’s probably the manufacturer’s trademark. As for the metal, I’d need to either see or get more information in order to give you a definite answer. We do offer metal testing services if you’re interested.

    1. Hi Gin,

      Your item is 14k gold, or 58.3% gold. NIRU is the trademark of a jewelry manufacturer that specializes in diamonds.

    1. Hi Ruth,

      CR does not indicate anything about gold content- this is probably the manufacturer/designer’s trademark. Many manufacturers have used CR as a stamp, so unfortunately I cannot tell you if your item is fine or costume jewelry. Look for any stamps on your item that have a number and K next to it, like 10k, 12k, 14k, or 18k – those are standard gold stamps. If it does not have such a stamp on it, it is unlikely that your item is real gold.

  68. I have come across a 14k pendant for a necklace that has another marking before it that I cant seem to find any information on. It is stamped with Z 35 before the 14k. The pendant is a heart with white and green stones socketed around the edges. Could the Z possible be the second half of CZ for cubic zirconium? If so, what does the 35 mean? Any information would be helpful!

    1. Hi there,

      I wouldn’t be so quick to say it’s cubic zirconia! The Z 35 stamp is a manufacturer’s stamp; I saw a similar item with the same mark. It was also 14k, and the stones were genuine diamond.

  69. my husband has a ring that is stamped with 18k with a superscript 2 above the k. what does that mean?

  70. I have a platinum ring that has a diamond symbol, looking from the side, with two lines going out from the top downward at an angle to make a triangle of sorts. There are letters inside the diamond, but I can’t read them. Is thete no way to send a picture?

    1. Unfortunately that type of lozenge hallmark is common and I would not be able to determine the manufacturer or designer. You may have better luck by figuring out the style of the ring and seeing if it corresponds to any particular time period.

    1. 10k gold indicates 41.6% gold content, and the circle with a dot is either a manufacturer or designer’s mark.

  71. Silver gold plated ring with little stones and engraved forever
    The stamp I see on the inside looks like 3|c
    Any idea what that means??

    1. Hi there,

      Most likely the manufacturer’s mark, doesn’t indicate anything about the metal type.

  72. I have a ring. Gold looking band, green stone, little stones around. Stamped on inside is
    “KGEPAD” can’t seem to find anything!

    1. Hi Zachary,

      KGE usually indicates that your item is gold-electroplated, which means that your item isn’t solid gold. The PAD may be a manufacturer/designer’s stamp.

  73. I have a gold nugget piece with an angel engraved, the only other marking is a V. It is left to me by my grandmother, wondering if it is real. It doesn’t change colors when wearing it.

    1. Hi Dianna,

      If it doesn’t have any standard gold stamps on it (such as 10k, 12k, 14k) it’d be hard to tell based off the description alone. You can send it in for a metal test if you’d like, though.

  74. Do you know what a marking of an F inside of a diamond shape would mean? (Jewel diamond shape, not four-sided.) It immediately follows 14K.

    1. Hi Cyndi,

      That mark belongs to Fessenden & Co, an American jewelry manufacturer that was in operation in the 1800s.

  75. I have a bracelet that has 14 individual squares all linked together. Its heavy and no tarnish or peeling. Took me forever to find any markings. 14k

    But each individual square is marked 14k.
    This is whats confusing me. This is some kind of expensive bracelet or is it just all together 14k

    1. Hi Steph,

      That’s very odd…I would get that tested if I were you, it’s not common to have an item with multiple gold stamps. There is a possibility it may be authentic, or it could be gold-fill, which is a very thick sheet of gold bonded to a non-expensive base metal, which would explain the weight.

  76. I have a Marine Corp Swoard and on the metal it is stamped 30, what does that mean (PS on the handel and tip of the leather cover only)

    1. Hi Cindy,

      I’m afraid I can’t help you with non-jewelry items. You may want to reach out to experts in military regalia; they should be able to point you in the right direction.

  77. I have a ring that is 10K but also have another stamp. A heart inside of a square. No clue what it means

    1. Hi Jason,

      That doesn’t indicate anything about the metal; it’s probably the designer or manufacturer’s stamp.

  78. Have a triangle Turquoise Ring with the stamp 78 inside what does that mean… can’t find anything with the 78 print on Google

    1. Hi Letoya,

      It doesn’t indicate anything about the metal content, so it’s probably the manufacturer/designer’s stamp.

  79. Hello
    I have a gold rope gold chain that both end clasps are stamped m.a.
    any idea what or who that could be?
    Thank you

    1. Hi Denise,

      Sounds like your item may be made by M.A. Jewelers; they’re located in New Jersey and are still in operation. They started off with gold chain manufacturing, which fits the description of your item.

    1. Hi Danielle,

      The 10k stamp indicates 41.6% gold content; the Co or C9 is the manufacturer’s or designer’s stamp.

  80. I have ring that has an odd stamp. It looks like a symbol of some type followed by SIER. There is a little wear on it.

    Not sure if it is worth anything or throw away.

    1. Hi TJ,

      Based on the stamps alone I can’t tell you if the ring is valuable; could you provide more detail about the design, stones, and metal color?

  81. I found a bracelet in the house I just moved in to. It was in a pretty box. When I opened the box there was a yellow gold and diamond bracelet. It still has a tag on it. On one side of the tag it reads 751434-A $17.99 52 weeks on the other it reads 14k .oct dia brac p1mqr sample. How do I find out its worth?

  82. I have a ring with the numbers 2610011 stamped inside band i cant find anything related with these numbers and reciet only says 1. 14c tradring can you help me please

    1. Hi Yancey,

      It’s not uncommon to see lots of number and odd markings on costume jewelry, especially if manufactured in China. Based on your description it sounds like this is the case.

  83. Hello, I recently found a piece of jewelry and on the back it has S 55, I’ve put a magnet to it and it does not stick, which means it is not metal and it is some type of element, how do I tell which one? It’s an oval piece, the front top is a bow and connected to the bow on the right is the 1st diamond and continues with diamonds in the Oval pattern until it reaches the other side of the diamond and there are a total of 15. The back is gold with S 55 .

    1. Hi Sara,

      It’s hard to tell from your description what the metal is. Is the whole item gold, or just the back? S 55 does not correspond to any known metal stamp.

  84. I have an earring with 750 on it which I believe means 18k then signature with numbers 377633. What do those numbers mean? I’m sending my email this time.

    1. Hi Ana,

      750 is indeed the stamp for 18k gold. The 377633 doesn’t indicate anything about the metal; my guess is that it’s the manufacturer or designer’s stamp.

  85. Hello! My husband’s class ring is stamped MJ 10K on the inside. He can’t remember who made it and he needs to get it resized. It is a gold colored high school ring from 1983. I’m sure the 10K refers to the gold content. He thought perhaps the MJ referred to Jostens, but I called them and they said it wasn’t them. Can you help identify the company that made the ring?

    1. Hi Lindy,

      Not sure about MJ…it doesn’t seem to correspond with any of the big class ring manufacturers. But if he needs it sized, you can actually send it on over to us! We can size 10k gold. Just check out our ring resizing services here.

  86. I have a pair of clip on earrings that look like feathers or leafs it is stamped L18k what does the L STAND FOR

    1. Hi Jeremy,

      Since the 18k indicates the metal content (75% gold), it’s safe to assume that the L is probably the manufacturer or designer’s stamp.

  87. Hi! I have a bracelet that have a mark CT and below 18750. It have a few marks so I don’t know if it’s gold plated. Thanks 🙂

    1. Hi there,

      Several pieces of jewelry on vintage jewelry sites and Ebay are also marked CT 18750, and they all seem to be gold-plated. Your bracelet probably comes from the same manufacturer.

  88. Hi there! I have a diamond necklace and am wondering the quality of it. On the necklace itself by the clasp it says ITALY and the diamond pendant on the inside says 10k SUN. Is there anything you can tell me about this piece?? Thank you

    1. Hi Brenda,

      Sounds like you have a piece of Italian jewelry that was created for export. Within Italy they prefer to sell 18k gold and higher; your item is only 10k gold which is 41.6% gold content.

  89. I have a 14k gold diamond ring set they ring says 14k on it but it also has a small S stamp in it to and the other ring also has 14k stamp into it but also has JST what do those two mean?

    1. Hi Amber,

      The stamps are manufacturer’s stamps. There’s a jeweler who uses the JST stamp in California; they’re probably made your ring set.

  90. Hello! I recently purchased a ring ant it is stamped with an upside down “U” (at least that’s what it looks like), 14k I know that’s the carat weight and a three point crown. I have scoured the internet and cannot find anything remotely close. I’m starting to think I was duped. Have you seen or heard of any hallmarks like this?

    1. Hi Kila,

      Unfortunately no, we haven’t. The 14k stamp indicates the gold content, which is 58.3% gold.

  91. Hi, I purchased what I assume is a vintage necklace. Like another poster, the clasp (it’s a bayonet) says “Germany.” There is a tumbled amethyst pendant that hangs off a rope chain (very white in hue…so maybe silver…no markings, though) and the pendant mount is shaped in petals.

    Any idea about the age? I was assuming 70s, because it looks very similar in style to my mother’s from the 70s.


    1. Hi Julie,

      Hard to tell; the GERMANY stamp has been seen on pieces from around the 1950s. If the style is similar to your mother’s from the 70s that could be a safe bet in regards to its manufacturing age.

  92. Hello,
    I have a large gold eagle pendant that (stamped on the back) has a letter C inside of a circle, followed by the stamp “harlequin” “1975” followed by 14 KT EP 0001. I can’t find any information on this piece anywhere-would you be able to tell me any information about these stamps?
    Thanks so much!

    1. The circled c is a stamp indicating copyright, which means that your item was definitely made after 1955 when the US passed copyright laws for jewelry designs, supported by the 1975 stamp. 14kt EP means your item is gold-plated, and my guess is that the 0001 may be 0.001 of a millimeter, which is exactly 1 micron of gold plating. Harlequin is most likely the manufacturer/designer’s stamp.

  93. I have a tested 14k gold pendant of a horse inside a heart. It has a copyright symbol (C inside a circle) and 14KGD. I am thinking the GD is the maker’s mark, since we tested it to be 14k gold. Some research has provided me with the name George Day in London? Do you know this maker? Any other info you can provide? THANKS!

    1. Hi Sharon,

      The 14KGD stamp is commonly used by a variety of manufacturers. Some pieces are in fact solid gold, while others are gold-plated. Based on the description alone, it seems odd that there’s a copyright symbol on this piece if it’s genuine high-quality jewelry, as the copyright symbol is generally used for branded costume jewelry.

  94. Hi there-I love this site, Thanks so much for all the great info. I was wondering if you knew anything about a diamond lozenge shape stamp/mark with either MtZ or MZ with a cross in between the M & Z inside the lozenge shape. It’s on a set of plain white metal bangles and there are no other markings. The metal is non magnetic & doesn’t react to platinum test acid so it may be plat or stainless steel. Any help with the makers mark would be very much appreciated. One last thing the lozenge shape is on its side (Eg the width is more than the height)

    1. Hi Kaleigh,

      That certainly sounds interesting; unfortunately we’ve never seen this M+Z mark so I’m afraid we can’t date this piece or identify the manufacturer.

  95. Hello,
    I have a silver-colored ring with a small green center stone and tiny “diamond” side stones. Inside is engraved SIL. Is this costume jewelry?

    1. Hi Fran,

      The SIL mark is a silver mark associated with jewelry from the UK, New Zealand, and Australia. Based on this information your item is probably costume jewelry.

  96. Hi have a bracelet on one side it has 925(A but its too hard to make out if its an A) and on the other side it says 10

    1. Hi Devin,

      925 is the mark for sterling silver (92.5% silver content) and the other stamps are probably designer/manufacturer stamps.

    1. Hi Carly,

      It’s probably the manufacturer/designer mark if it doesn’t indicate anything about the metal.

  97. I have an old ring pre 1970 with a 10k stamped on it and another number that is so worn down only the number 3 is visible at the end and the ring is some kind of precious metal any information about what it could be or where i could find out would be great. It also has a large blue stone that reflects light in a star pattern across the stone and i cant figure out what kind of gemstone it is.

    1. Hi Austin,

      Sounds like you found yourself a star sapphire ring! If it’s vintage and 10k gold (41.6% gold), chances are it’s probably a Lindy/Linde star sapphire. The gem is synthetic (manmade), but Lindy pieces can fetch a nice price ($100+) online.

  98. Hi
    I have a few pieces of jewelry that have 925 with an R next to it sometimes the R is flipped upside down and sometimes it has a curvy look. Do you know what it represents?

    1. Hi Stephanie,

      The R is most likely the manufacturer/designer’s stamp. The 925 indicates that your item is sterling silver, or 92.5% silver.

  99. Hi, i have a gold pendant with an amethyst (i think) in it, it says 375 on it which is circled then under that it says GM16
    Does that tell you anything about the ring?
    If not and it is a manufacturer/maker mark, do you have any idea who it could be?

    1. Hi Keren,

      375 is 9 karat gold, or 37.5% gold, which means that your item is probably of British origin since the minimum gold content requirement for manufacturing in the U.S. is 10k.

  100. Hi. I have a ring (bought from an antique jeweller) that is stamped 14K (I know this refers to the gold), but it also has a diamond stamp and also A59… What do these mean?

  101. I have a gold ring with a light blue heart-shaped stone. The ring is stamped 10k and Exquisite. I’m specifically interested in the “Exquisite” stamp. Thanks.

    1. Hi Lisa,

      That stamp is used to indicate the Exquisite jewelry line made by Walter Archibald Parker Watson. The UK-based company WAP Watson has been around since the 1900s and their vintage items have become collectibles.

  102. I have a ring that says 925 so is silver, but in the other side is marked “7 1” and it has a diamond or cz in the middle that rocks or moves. Do you know what that could stand for?

    1. Hi Amanda,

      The 7 1 is most likely the manufacturer/designer stamp, as the 925 indicates the metal type (sterling silver.)

  103. I bought a 14k gold ring and it has a stamp with a circle and k1 in the circle. Nothing else is engraved in it. Is there any chance that the ring isn’t 14k? Please tell me. I got the certification that it is 14k but I thought that if it isn’t engraved maybe it is not real. (I got it from an exchange/second hand/ pawn..I don’t know which is the correct word for it in english)

    1. Hard to say, I would get it tested at a jeweler’s to see if it is 14k gold. They can check with an acid test.

  104. Hi, I have an antique silver bracelet with MR inside a heart on it, please tell me what it means? Thank you 🙂

  105. I have a ring that is stamped 18KTRGP. Does this mean it’s Gold Plated and pretty much has no value?

    1. Hard to tell with no physical evaluation of the item, but normally GP does stand for gold plated, yes.

  106. Hi.
    I have a diamond pendant that’s marked 14k PTC. I’m not finding info on this. Do you know shaft the PTC means? Thank you.

  107. I have a pair of vintage clip on earrings that are gold(tone?) with emerald, blue saphire, and ruby looking square stones, and round rhinestones. It is stamped”20 59″ on the back. There’s an opening behind some of the stones…. I can’t find out anything about them…help please 🤔

  108. Hello! My gold earrings have stamp on them. I get the 585 part but what does mean, please?
    Thank you.
    P.S. Do both earrings in a set have to have a gold stamp?

  109. HI there! I have a band that has what seems like an 8 or a B with lines all around the sides and the top (similar to sun rays), then 18K. Any idea what this manufacturer’s stamp is? I can also send a picture if possible! Thank you so much for your help!

    1. Hi Amber,

      Unfortunately we can’t identify that particular stamp. You may have better luck if you upload a picture of the stamp to google images and do an image search- perhaps a hallmark database will match up with a similar mark.

  110. I Have A Chain That Is marked With 925 Italy and DNT What Does DNT Mean And Is It Valuable? The Chain Is Heavy

    1. Hi Mari,

      DNT is the manufacturer’s stamp. The 925 indicates that your item is sterling silver, which is not very valuable.

  111. Hello,

    I have a ring with the mark 18K and T50.
    I understand the 18K but what is T50 ? I Goggled for a while now and found no info. Jewelry’s I found with this T50 name/stamp, but no info what it means.

    Could you please enlighten me ? Thank you in advanced

  112. i just purchased a walking cane with a supposed 14k knob. the markings on it, as far as i can tell are 2 s 50A. could you tell me what that means and if i was ripped off on the 14k gold part! Thank you so very much!

    1. Hi Jason,

      Neither of those marks indicate gold content. Your best bet is to have it tested by a jeweler with an acid test. Keep in mind that it would be quite heavy if the knob is solid 14k gold- if it’s light, chances are it’s plated.

  113. Hello

    I have a ring that is 14k white gold. The center dimond is .76 carats and with the surrounding stones the total carrot weight is 1.34. Stamped inside is 14k (I know this is for the metal) and 46. What does the 46 stand for? I am very interested to find out what year it was made. I can provide pictures if needed.

    Thanks in advance!

    1. Hi Chelsea,

      Since the 14k indicates the metal content, the 46 is probably a manufacturer/designer stamp.

  114. Hello so I have a belt buckle that has a giant G in the middle of it as the design. There’s no stamp indicating what brand it is so I’m going to say that it’s most likely the brand “Guess” I kept looking for any other stamped markings on it but the only ones I see where In fine tiny letters I see
    “O.B.I. made in Italy” I’ve Googled it many times but idk if maybe I’m not wording what im looking for the right way. But I was wondering if there was any way you could help me out with what it may mean thank you

    1. Hi Melanie,
      Unfortunately no, we can’t identify manufacturers of items that are not jewelry. The stamps do not indicate any metal content information either.

  115. Hello ☺️ I have a bracelet with two engravings inside that I don’t recognize, one is a rectangle with a star and 001 inside, the other one is right next to that and looks like it could be CL??? Thanks so much!!

  116. I have a gold bracelet stamped 950. Does this mean it IS all gold or is it platinum with a gold overlay. I gave it a quick testing with foundation and it left a black mark. Thanks for your help.

  117. I have a 15-strand black onyx torsade with gold beads and a gold “shell-shaped” clasp. It is stamped 750, which I know is 18kt; however, it also has a mark to the right of the 750 that looks like a 3-prong fork. The necklace came from Black, Starr & Frost and was bought in the mid-1980’s. Any idea what the trident marking might be? Thanks!

    1. Hi Jody,

      It’s probably the manufacturer’s stamp given the fact that Black Starr and Frost has their own BS&F stamp.

  118. I have an old “Pontiac” ring that belonged to my dad. I know it is at least 50 yrs old. It has a gold band and inside it appears to be marked 14K AK. I wouldn’t think this is “real” gold as it was given to him as a service award from his work back around early 1960’s I believe. But can you tell me what that marking means? Thank you!

    1. Hi Christine,

      14k indicates 58.3% gold content and is considered to be a standard solid gold alloy in the United States, so I’m pretty sure it does count as real! The AK is the manufacturer’s stamp.

  119. I have a ring stamped 18k plat 950 fg. I found that the fg is frederick goldman. Is it 18k gold plated with 950 platinum?

    1. It’s really quite uncommon to plate with very high quality precious metals such as 18k gold and platinum. I’m not sure what your ring looks like, but if it has 18k and platinum stamps, chances are it’s a two-tone design with solid sections of each metal instead of plating.

  120. My mother bracelet has a diamond shape with a T in it. It said 18k and it had 12 stones. I’m trying to figure out who’s the maker. This piece is more then 20 years old.

    1. Not sure about that stamp, sorry! You might be able to narrow it down by style or location of origin, such as where your mother may have bought it.

  121. Cheaply purchased solitaire and baguette diamond engagement ring with a heavy 8 pronged setting for solitaire with a smooth vine wrapping around center looks to be old? With 925, • , , 2 in a square?

    1. 925 indicates that this is made from sterling silver. The 2 in a square is the manufacturer or designer’s mark.

  122. Hi, i’m interested in buying a necklace from somebody but I wanted to check what “Brandon f 18k” meant? Thanks. Again the f is before the 18k mark and its spaced just as shown above.

    1. Hi Jo,

      Sounds like it’s either a manufacturer’s stamp, or a stone stamp indicating the stone carat weight of the ring.

    1. Hi Jeremy,

      Sounds like it’s either a manufacturer’s stamp, or a stone stamp indicating the stone size.

  123. Hello, I have a gold colored ring, it has a ruby looking gem. In the inside is a box with the letter A, a 5 point star, I’m not sure if the next one is a capital I or the number 1, and the last one is either O G C or a 0. Any information would be of help. Thank you

    1. Hi Crystal,

      It could be from Italy. The five point star is one of their hallmarks for precious metal.

  124. I have a ring from Tacori, it has the “PLAT” but does not have any numbers after it. Does this mean it is solid platinum with no other metals mixed in?

    1. 10K indicates 41.6% content. The PL either means it’s plated, or it could just be the manufacturer/designer stamp.

  125. Hi Annabelle! I would love if you could give your opinion on this. I have a ring that was my Nana’s before she passed away. It looks like real gold to me. It has what looks like diamonds in a star pattern and a green emerald in the middle, although it could be cubic zirconia of course, I wouldn’t know. The only marking is a number 3 inside. Thanks!

    1. Hi Mila,

      It would be easier to date this piece if you know more about when your grandmother got it; anything such as when she could’ve purchased it would help with identification. Where your grandmother is from or where she bought it will also help to identify the ring.
      The stamp 3 could indicate a variety of things; it could be the manufacturer or designer stamp, or it could be a worn down metal stamp such as 375.

  126. Annabelle, what does B10K on a ring mean. I get the 10k, have never seen a B ahead of it. The ring belonged to an elderly lady.

    1. Hi there, it could be the manufacturer/designer stamp before the metal stamp. It’s a stamp that’s common in vintage pieces, but I’m not sure as to which company does this.

  127. Hello there, can you please tell me what does PM 900 mean? I have this diamond ring with that markings. It looks platinum, but it should be PT, in stead of PM right?


    1. It could be the manufacturer’s stamp before the 900 for platinum content. I would have the ring tested at a jeweler’s to confirm the metal.

  128. Hello, Annabelle

    I have a yellow gold ring that is stamped 14KT NEI .30 TWB. That is the information on it with 3
    very nice sized diamonds on the top.

    1. Hi there, that seems to be a common stamping format for vintage pieces, often dating to 1980s. The 14k indicates 58.3% gold content, while the NEI is the manufacturer’s stamp, and the .30 TWB most likely indicates that you have a total of .30 carats of diamonds in this design.

  129. Does anyone know what a v shape with a squiggle in the bottom means it’s on a 18k white gold and gold ring

  130. My aunt received a charm for each 5 years of service from the Ohio Bell Telephone Co. some have small diamonds on them as she advanced in years. The back of the gold ones say 10k but also top. Any idea what that means? Someone suggested that it was all gold except the clasp but there is no clasp. And another thought it was gold only on the top. It looks uniform though. Thanks.

    1. Hi JoAnne,

      10k indicates 41.6% gold content. The TOP is probably a manufacturer/designer stamp; it wouldn’t indicate a specific location that is gold only.

  131. My friend has a gold ring and it has H with a circle around it next 10k what’s the h with a circle mean?

    1. Hi there,
      The d4.01ct d0.167ct are stone stamps; they indicate the carat size and carat total weight of the stones in your piece. The s925 indicates sterling silver, while G14k is the stamp for 58.3% gold content.

      In combination, this piece is most likely a gold-plated sterling silver ring.

  132. Hi I have a 2 tone ring that has the jewelers mark which appears to say CN over an egg or an 0. However it also has a 54 that seems laser etched into the metal ( they both look like laser etching) is that 54 just a random number?

  133. I have an opal ring from my great grandma. It has “9 ci” and “solar” marked on the inside. What does this mean?

    1. Hi Melinda,

      14k indicates 58.3% gold content. As for the other stamps, they are either manufacturer/designer stamps or stone stamps, if the design contains stones.

  134. I have 14k gold earrings with what looks like real diamonds left to me by my mother in law, inscription reads 1011 14k. Can you tell me what the numbers mean?

    1. Hi Mandy,

      The 14k indicates 58.3% gold content. The 1011 is either a manufacturer or designer stamp.

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