8.3mm Sterling Silver Rhodium-plated Created Opal Colorful Cubic Zirconia Heart With 2 Inch Extension Necklace - 16 Inch - 1.6 Grams In Sterling Silver in Plated Metal - - Charm/Element Width: 8.3 mm - Width of Item: 8.3 mm - Charm/Element Length: 7.9 mm - Length of Item: 18 in - Chain Length: 16 in - Chain Width: 0.5 mm - Clasp /Connector: Spring Ring - Finish: Polished - Chain Type: Cable - Feature: Solid - Extender Length: 2 in - Engravable: Not Recommended - Clasp Width (Male end): 5.15 mm - Clasp Width (Femal - - [ Potential Enhancement Methods: cubic zirconia ] - Synthetic. Some are covered with a product that makes the stone more durable. - [ Care and Handling: cubic zirconia ] - Clean with warm soapy water and a soft cloth. - - [ Potential Enhancement Methods: created opal ] - 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 opal ] - 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. -