Item #: 550161 This is an authentic TIFFANY 18K Yellow Gold Signature Double X Ring size 50 or 5.25. This ring is crafted of 18 karat yellow gold and features two X motifs on a polished band. This is a beautiful ring with the classic style of Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.