About SISGEM JEWELRY: SISGEM JEWELRY was born to provide a favorite jewelry for every ladies. About round brilliant-cut cubic zirconia: Cubic zirconia (CZ) is the cubic crystalline form of zirconium dioxide (ZrO2). The synthesized material is hard, optically flawless and usually colorless, but may be made in a variety of different colors. Its refractive index is high at 2.152.18 and its luster is adamantine. About the craft: From the selection of materials to every detail in production, to the final product, each jewelry has been carefully designed and strictly controlled. Looking Forward to YOUR STORY: Every piece of SISGEM jewelry will have a beautiful story. It may be about the person who gave the gift, or maybe about the one who is wearing jewelry. We look forward to the starting of such a story. A Gift for Yourself: Expecting that SISGEM jewelry make your heart sing every time you wear them and that speak to your core. A Great Gift Idea for Her: MomWifeDaughterSisterGirlfriendTeens It Will Be A Beautiful Story Between YOU and HER. Product Material: Sterling silver 18k gold plated Cubic zirconia Measurement: Size: 2.35"*0.65" (59.6 mm*16.6 mm) Total: 4.26 g Package Includes: 1x Cubic zirconia drop stud earrings 1x Gift Box Caring for your jewelry: 1.Separated it from hard items to prevent scratches and store it in a fabric-lined jewelry box or pouch. 2.Do not expose to harsh chemicals such as cosmetics, hairsprays, perfumes, chlorinated water. 3.To clean gold plated jewelry, use warm water, a mild soap, and a soft bristled brush, if needed.