Sterling Silver With 14k Accent Created Sapphire Ring - Size 7 - .45 Carat Gemstone Weight in 14k Yellow Gold and White Gold - Band Width: 2 mm - Width of Item: 2 mm - Ring Top Length: 7 mm - Ring Top Width: 7 mm - Finish: Polished - Ring Top Width: 7 mm - Ring Top Length: 7 mm - 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: created sapphire ] - Grown in a laboratory, but are chemically, physically and optically identical to natural gems. Natural gems typically have inclusions from the crystallization process, where gases and other minerals mix during the molten stage of stone creation. Lab-created stones rely on a steady, controlled proces ::: [ Care and Handling: created sapphire ] - Avoid strong detergents, heat, pressure and ultrasonic cleaner or steamer. Avoid re-polishing or re-cutting of the stone. Color may fade in light or with heat. Clean with warm soapy water and a soft brush or cloth. :::