Lab Grown Emerald Stud Earrings Teneff Jewelry Emerald Cut Lab Grown Diamond Stud Earrings In 14K Yellow Gold (2 Ct 1 Carat Lab Grown Emerald Diamond Studs in Yellow Gold Lab Grown Emerald Stud Earrings Teneff Jewelry. Includes: A matching box. Style: Modern Material: 925 sterling silver, Platinum plated, Zircon, Lab grown emerald 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 Product measurements: Length: 0. 5 in (1. 2 cm) Each earring: 0. 5 carat Main stone: 1 carat Weight: 0. 07 oz (2. 1 g)