14k Yellow Gold Solid 3mm Cuban Concave Curb Chain Necklace with Lobster Claw Clasp Width : 3mm Guaranteed 14k Real Gold and "14k" Stamped NO gold plated or filled "NO Question Asked" 30-day Return Policy. Promptly Packaged with Free Gift Box You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it! All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.