JEWELRY SPECIFICATIONS and Additional InformationPurity:10KChain Length:16Chain Width:3.2Clasp /Connector:LobsterFeature:HollowManufacturing Process:CastedMaterial: Primary:GoldColor:YellowManufacturing Process 2:Machine MadeSold by Roy Rose Jewelry ~ Selling fine jewelry since 1980 and online since 1999Deluxe Jewelry Gift Box includedCertificate of Authenticity included100% SATISFACTION ~ 30 Day Return Policy for Refund