Sterling Silver Lemon Quartz and Diamond Earrings - .04 Carat Diamond Weight 4.54 Carat Gemstone Weight in Sterling Silver - Width of Item: 13 mm - Length of Item: 13 mm - Earring Closure: Post & Push Back - Earring Type: Birthstone - Finish: Polished - Feature: Solid Polished ; Post Earrings - All of our jewelry for women and men are authenticated with a 10K or 14K hallmark and are tested to pass FTC regulations. ::: ::: [ Care and Handling: diamond ] - Clean with warm soapy water and a soft brush or cloth. ::: ::: [ Potential Enhancement Methods: lemon quartz ] - Usually dyed and/or heat treated to produce different colors. Sometimes surface enhanced with a coating to enhance color. ::: [ Care and Handling: lemon quartz ] - Avoid abrasives, harsh chemicals, steam, and ultrasonic cleaning. Clean with warm soapy water and a soft brush or cloth. :::