What Does 585 Mean on Jewelry?

The 585 fineness mark tells you that a piece of jewelry contains 585 parts per thousand of pure gold — the equivalent of 14 karats. This is the most popular gold standard in the United States and much of North America, prized for its excellent balance of gold content, durability, and affordability. The remaining 41.5% of the alloy typically includes a mix of copper, silver, zinc, and nickel (or palladium in nickel-free formulations).

Fourteen-karat gold is significantly harder and more scratch-resistant than 18K (750) or 22K (916) gold because of its higher alloy content. This makes it especially well-suited for rings, bracelets, and other pieces that endure daily wear and contact. The trade-off is a slightly less saturated gold color compared to higher-karat golds, though most people find 14K gold's warm tone perfectly attractive.

The 585 stamp is the European metric equivalent of the 14K mark used in North America. You will see 585 more frequently on jewelry made in Germany, Italy, Eastern Europe, and other regions that use the millesimal fineness system. American-made pieces are more likely to be stamped '14K' or '14Kt,' but both designations are legally equivalent. Some pieces manufactured for international markets may carry both stamps.

Look inside the band of rings, on clasp mechanisms of necklaces and bracelets, on earring posts or backs, and on the bail of pendants. The 585 stamp is often accompanied by a maker's mark or country-of-origin hallmark. On European jewelry, you may also see an assay office mark beside the 585 stamp. Use a magnifying glass or jeweler's loupe, as these stamps are typically 1-2 millimeters in size.