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. Picture style: Ghost mannequin Features: Moissanite Material: 925 sterling silver, moissanite, rhodium-plated, zircon (accent stones) Care: Avoid wearing during exercise, as sweat will react with the jewelry to produce silver chloride and copper sulfide. Imported Product measurements: Chain length: 16 in Extension chain length: 2 in Moissanite: 1 carat