What Is the Difference Between White Gold and Platinum?

White gold and platinum look nearly identical when new, but they are fundamentally different metals. White gold is a gold alloy: pure yellow gold mixed with white metals – typically palladium, nickel, or manganese – to shift its color, then coated with a thin layer of rhodium plating that provides its bright, mirror-white finish. Platinum is a naturally white precious metal, used in jewelry at roughly 95% purity (marked 950Pt or Pt950) with no coating required to achieve its color.

The practical differences show up over time. White gold's rhodium plating wears through with everyday use, typically revealing a slightly warm or yellowish tint underneath after one to three years depending on wear habits. Re-plating is routine maintenance that QJR performs as a standard service, but it is a recurring cost that platinum does not require. Platinum, being naturally white, never needs re-plating. However, platinum develops a patina of fine scratches over time, softening to a satin or matte finish rather than a high shine. Many people love this look; others prefer to have it re-polished periodically. On the durability side, platinum is denser and heavier than white gold – a platinum ring weighs roughly 60% more than the equivalent 14k white gold ring – and it is more resistant to cracking under stress. That said, platinum scratches more visibly because the metal displaces rather than cuts away when it contacts a hard surface. White gold, being harder, tends to hold its polish longer but can crack or become brittle under repeated bending if the alloy has a high nickel content.

For ring sizing and repairs, both metals require different handling. White gold is sized with a torch and solder using standard gold-compatible solder. Platinum requires platinum solder and a very high-temperature torch – it melts at around 1,768 degrees Celsius versus roughly 960 degrees for silver solder on white gold – and the technique must account for platinum's density and heat retention. As a result, platinum repairs typically run higher than equivalent white gold work. Cost and availability of the metal itself also differ: platinum is rarer and heavier, so a platinum ring in the same design as a white gold version will cost significantly more. If you are unsure which metal your ring is made of, QJR offers metal testing via an XRF analyzer that gives a precise alloy composition in minutes.