Black Obsidian Gold Engraved Bead Necklace with Sterling Silver Vermeil and Crystal Clasp Consign Now DeptJewelrySizeLength 33 in. 15.5mm Black Obsidian Gold Engraved Bead Necklace with Sterling Silver Vermeil and Crystal Clasp. Length 33 in. Please note that this auction has ended. Click here for an overview of this auction.