Item #: 763418 This is an authentic TIFFANY 18K Yellow Gold Diamond Narrow 1837 Ring 54 7. The ring is crafted of 18 karat yellow gold with two single brilliant diamonds weighing approximately .02 total carat weight on either side of an engraved Tiffany & Co along with a 1837 stamp. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.