Neiman Marcus Lab Grown Diamonds Lab Grown Diamond 18K White Gold Lab Created Emerald Stud Earrings 925 Sterling Silver Stud Etsy Two Carat Lab Grown Emerald Diamond Stud Earrings in 18K White Gold Lab Grown Oval Emerald Solitaire Drop Earrings. Includes: A matching box. Material: 925 sterling silver, 18K gold plated, Lab grown emerald 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. Imported Product measurements: Main stone: 0. 16*0. 23 in (0. 4*0. 6 cm)