Item #: 1156724 This is an authentic TIFFANY 18K Yellow Gold Narrow 1837 Ring 52 6. The ring is crafted of 18 karat yellow gold and features the classic "T & CO 1837" logo engraved across the concave band. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.