Item #: 1183459 This is an authentic TIFFANY 18K Yellow Gold Diamond Novo Half Circle Band Ring 52 6. The ring is crafted of 18 karat yellow gold and features a half-band of round brilliant cut diamonds weighing approximately .28 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.