Style: Modern Appearance: Minimalist design Material: 925 sterling silver, moissanite, zircon, platinum-plated Craft: Polished 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 Includes: A matching box. Moissanite jewelry over 0.3 carats includes a certificate of the stone properties and a limited warranty card with the original overseas manufacturer. repairs will be covered, but return shipping cost will be purchaser's responsibility. Product measurements: 5: Circumference 2 in 6: Circumference 2.1 in 7: Circumference 2.2 in 8: Circumference 2.3 in 9: Circumference 2.4 in Main stone: 1 carat Weight: 0.1 oz (3 g)