Sterling Silver Cubic Zirconia Star 2 Strand Sparkle-Cut With 2inch Ext Necklace - 16 Inch - in Sterling Silver - FREE gift-ready jewelry box - Charm/Element Width: 24 mm - Charm/Element Length: 13 mm - Chain Length: 16 in - Chain Width: 3 mm - Clasp /Connector: Lobster (Fancy) - Extender Length: 2 in - ::: [ 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. :::