Item #: 1428046 This is an authentic TIFFANY 18K Yellow Gold Narrow 1837 Ring size 50 or 5.25. This ring is crafted of 18 karat yellow gold and has the classic "T & CO 1837" logo engraved across the stylish band. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.