Sterling Silver Rhodium-plated Cubic Zirconia With Heart With 2in Extension Necklace - 16 Inch - 3.2 Grams In Sterling Silver in Plated Metal - - Gift ready jewelry box included - Measures 8.35mm Wide - Charm/Element Width: 9.5 mm - Width of Item: 8.35 mm - Charm/Element Length: 8.35 mm - Length of Item: 18 in - Chain Length: 16 in - Chain Width: 1.35 mm - Clasp /Connector: Lobster (Fancy) - Finish: Polished - Chain Type: Rolo - Feature: Childrens - 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. :::