1 Carat Moissanite 925 Sterling Silver Stud Earrings - Gold, Silver1 Carat Moissanite 925 Sterling Silver Stud Earrings Gold, Silver Imported Size One Size 925 Sterling Silver, Platinum Plated, 18K Gold Plated, Moissanite Gold, Silver Includes a matching box. Care Instructions 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. Product Measurements Length: 0. 45" Total 1 Carat; Each Earring 0.