Custom Moissanite Pendants Millennium Jewelery Moissanite Necklace Etsy 1.0CT Moissanite Pendant Necklace 925 Sterling Silver Jewelry Moissanite 925 Sterling Silver Necklace Poshmark Moissanite Necklaces JPB Jewelry Box. 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, 18K rose gold plated, Platinum plated, Moissanite Carat weight: 0. 5 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: Chain length: 17. 7 in Weight: 3. 3 oz (94 g)