Style: Minimalist Appearance: Bar Material: 925 sterling silver, 18k gold-plated, moissanite, platinum-plated Craft: Polished Care: Avoid wearing during exercise, as sweat will react with the jewelry to produce silver chloride and copper sulfide, which causes the jewelry to deteriorate and corrode over time. Imported Includes: A matching box.No certificate of authenticity and limited warranty card with gemological research association (gra), because a single moissanite has fewer carats (less tha Moissanite Chain, Chain Earring, Moissanite Necklace, Moissanite Earrings, Business Products, Advertise Your Business, Gold Polish, Stunning Earrings, Girls Jewelry