Sterling Silver Round 6mm Garnet Polished .015 Carat Diamond Weight Diamond Birthstone Earrings - in Sterling Silver - All of our jewelry for women and men are authenticated with a 10K or 14K hallmark and are tested to pass FTC regulations. ::: ::: [ Care and Handling: diamond ] - Clean with warm soapy water and a soft brush or cloth. ::: ::: ::: [ Care and Handling: garnet ] - Clean with warm soapy water and a soft brush or cloth. :::