Lab Grown Emerald Cut Emerald Pendant with Lab Diamond Trio Classic Emerald Cut Lab Grown Emerald Halo Pendant 1.5 Carat Lab Grown Emerald Ring Premium Gemstone Jewelry 925 Sterling Silver 1 Ct Oval Cut Natural Green Emerald Pendant W 18 Round lab grown emerald necklace (BZH19O) BalLaVie. 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: Chain length: 18 in Main stone: 1. 5 carat Weight: 0. 12 oz (3. 5 g)