Stamped "925". Size 20" Sterling silver is an alloy of silver containing 92.5% by mass of silver and 7.5% by mass of other metals, usually copper. The sterling silver standard has a minimum millesimal fineness of 925. Sterling Silver, Silver Jewelry, Modern Necklace, 925 Necklace, 925 Jewelry, Artisinal Jewelry, Jewelry Accessories, Modern Jewelry, Silversmith, Fashion, Beautiful, Popular, Trending #925 #sterling #silver #accessories #jewelry