Sterling Silver Oval Tanzanite Hinged Hoop Earrings - 1.84 Carat Gemstone Weight in Sterling Silver - Thickness: 4 mm - Width of Item: 18 mm - Length of Item: 20 mm - Earring Closure: Hinged - Earring Type: Hinged / Huggie - Finish: Polished - Feature: Hinged - Feature 2: Hollow 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: tanzanite ] - Usually heated to improve appearance. ::: [ Care and Handling: tanzanite ] - Do not use ultrasonic cleaner or steamer. Avoid sudden temperature changes. Clean with a damp cloth or soft brush. :::