925 Silver Meaning What Does 925 Mean on Silver Jewellery? Moissanite Pendant Etsy S925 Sterling Silver 5mm Moissanite Tennis Chain Helloice 925 Sterling Silver 2.72Ct Moissanite Pendant. Pieces: 1 piece Includes: Moissanite jewelry over 0. 3 carats includes a certificate of stone properties. Limited warranty included, please contact us for any issues related to your purchase. Material: Platinum plated, 925 sterling silver, Moissanite Carat weight: 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 0. 2 oz (5 g)