2.5mm Sterling Silver Stackable Expressions Created Emerald Three Stone Ring - Size 5 - .60 Carat Gemstone Weight in Sterling Silver - Feature: Solid Polished ; Prong set - 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 emerald ] - 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 emerald ] - 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. :::