Moissanite Jewelry over 0.3 carats includes a certificate of stone properties. Limited warranty included with your purchase. Material: 925 Sterling Silver, Platinum-Plated, 18K Gold-Plated, Moissanite 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. Product Measurements: Circumference: 6.8 in Total: 1.8 carat
