What’s Sterling Silver ? Is sterling silver good quality?

Sterling silver is an alloy of silver containing 92.5% by weight of silver and 7.5% by weight of other metals, usually copper. The sterling silver standard has a minimum millesimal fineness of 925. 
Sterling silver jewelry is a high-quality choice consisting of 92.5% silver content- which makes it popular amongst jewelry collectors and designers alike. Sterling silver jewelry sets purchased from a reputable jeweler or jewelry brand is durable, timeless metal, and when cared for properly, can last a lifetime.