My Heart Moissanite 925 Sterling Silver Heart Necklace

Pieces: 1-piece Includes: No certificate of authenticity and limited warranty card with gemological research association (GRA), because a single moissanite has fewer carats (less than 0.3 carats). Material: 925 Sterling Silver, Moissanite Carat weight: 0.51 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. 7-10 business day shipping Product measurements:One Size:Chain length 16.5 in, Extension chain length 1.2 in, Weight 0.2 oz (5.13 g)