Lab Grown Sapphires Sapphire Jewelry Grown Brilliance Round Cut White Sapphire Crown Necklace in Gold SayaBling Lab Grown Opal (1 ct. t.w.) & Lab Grown White Sapphire (1 2 ct. t.w Lab Grown Shell Style Oval Sapphire and Lab Diamond Pendant Sterling Silver Lab Created White Sapphire Circle Necklace. Includes: A matching box. Style: Minimalist Material: 925 sterling silver, Platinum plated, Zircon, Lab grown sapphire 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: 15. 7 in Extension chain length: 2 in Sapphire: 0. 715 carat Zircon: 1 carat Weight: 0. 15 oz (4. 36 g)