Sterling Silver Amethyst Bluetopaz and Citrine Ring - Size 5 - 3.00 Carat Gemstone Weight in Sterling Silver - Band Width: 2 mm - Width of Item: 2 mm - Finish: Polished - Feature: Solid - All of our jewelry for women and men are authenticated with a 10K or 14K hallmark and are tested to pass FTC regulations. ::: [ Potential Enhancement Methods: amethyst ] - Almost all are heated to improve appearance or deepen color. ::: [ Care and Handling: amethyst ] - Do not expose to intense heat. Clean with warm soapy water and a soft brush or cloth. ::: ::: [ Potential Enhancement Methods: citrine ] - Usually heat treated or irradiated to improve color. ::: [ Care and Handling: citrine ] - Do not expose to intense heat. Clean with warm soapy water and a soft brush or cloth. ::: ::: [ Potential Enhancement Methods: topaz ] - Usually irradiated and heated to produce color. Some topaz may be coated with a thin film of minerals applied through heat. ::: [ Care and Handling: topaz ] - Clean with warm soapy water and a soft brush or cloth. :::