Sterling Silver Cubic Zirconia Hinged Hoop Earrings - in Sterling Silver - Thickness: 8 mm - Width of Item: 16 mm - Length of Item: 16 mm - Earring Closure: Hinged - Earring Type: Hinged / Huggie - Finish: Polished - Feature: Hinged - Feature 2: Solid Polished - 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: 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. :::