What is Sterling Silver 925?
Because pure silver is much too soft to be used in jewelry, it is often combined with other metals to create a more durable metal. When 92.5% of pure silver is mixed with 7.5% of other metals (often copper, nickel or zinc) the resulting alloy is called sterling silver. To identify it as such, the number 925 is stamped upon the silver, often in a hidden part of the jewelry. This number is known as the hallmark and denotes the percentage of silver purity in the alloy. In other words, 925 is the same as sterling silver, meaning that if there is any other stamp on the metal, it is not sterling silver. Alternately, the hallmarks STER, STG, SS and Sterling Silver may be stamped in place of 925.