Tiffany & Co. 18k Yellow Polished Gold Swirl Brooch Consign Now DeptJewelrySizeLength 1.75 in. Weight 7.34 dwt Tiffany & Co. 18k Yellow Polished Gold Swirl Brooch, stamped Tiffany & Co. 750 Italy Length 1.75 in. Weight 7.34 dwt Please note that this auction has ended. Click here for an overview of this auction.