This 1 Carat Moissanite Butterfly Pendant Necklace comes with a matching box and a certificate of stone properties if the moissanite is over 0.3 carats. A limited warranty is also included, and please reach out to us for any concerns about your purchase. Made from 925 sterling silver and platinum-plated, this necklace features a 1 carat main stone and weighs just 0.1 oz (3 g). Remember to avoid wearing it during exercise to prevent deterioration and corrosion caused by sweat. This beautiful piece is imported and measures 17.7 inches in chain length.