What Does 925, 585 & 750 Mean on Jewelry?
Instantly decode the hallmark stamps stamped on your rings, necklaces, and watches to determine real gold, sterling silver, platinum, or costume plating.
The most popular jewelry gold standard in the United States and Europe. Blended with copper, silver, or zinc for maximum durability, resistance to scratching, and everyday wearability.
High-end luxury jewelry standard used by Cartier, Tiffany, and Rolex. Richer yellow luster and higher intrinsic value than 14K, though slightly softer.
The minimum legal standard for gold jewelry in the UK, Australia, and parts of Europe. Highly durable and budget-friendly.
The minimum legal standard to be called solid gold in the United States. Extremely durable and resistant to bending, common in class rings.
Extremely popular in Middle Eastern, Turkish, and South Asian bridal jewelry. Distinctive vibrant golden-orange glow with very high bullion value.
Investment bullion bars, sovereign coins, and ceremonial jewelry. Too soft for intricate prong settings on daily rings.
The global benchmark for fine silver jewelry. The remaining 7.5% is typically copper for strength. Often stamped with "925", "STER", or "STERLING".
Pure silver used primarily for commemorative coins, bullion ingots, and delicate woven chain work.
Traditional standard frequently found on antique European silverware, vintage pocket watches, and mid-century jewelry.
The elite choice for bridal engagement rings. Hypoallergenic, extremely dense and heavy, naturally white and never requires rhodium replating.
Contains brass or copper inside with a microscopic layer of gold (often less than 0.5 microns thick). Has minimal melt/scrap value.
Much thicker and longer-lasting than regular gold plating. Will not easily tarnish or rub off for years, but still not solid gold.
Common on vintage costume rings. The 18K refers only to the thin gold surface layer, NOT the solid ring body.
High-quality hybrid: the underlying core is genuine 925 Sterling Silver, electroplated with at least 2.5 microns of 10K+ gold.
How to Test if Your Jewelry is Real at Home
1. The Strong Magnet Test
Real gold, sterling silver, and platinum are non-magnetic. If a ring strongly clings to a refrigerator or neodymium magnet, it has an iron or nickel core (costume jewelry).
2. Skin Green / Black Mark
If wearing the ring turns your skin green, it contains high amounts of copper/brass with thin electroplating that has worn off. Pure solid gold and platinum never discolor your skin.
3. Check for Plating Letters
If your jewelry says "18K GP" or "14K HGE", the "18K" only describes a wafer-thin microscopic surface wash over cheap base metal. Solid gold will never include GP, GF, or HGE stamps.