Item #: 1424332 This is an authentic TIFFANY 18K Yellow Gold Diamond .50ctw Half Circle Band Ring 53 or 6.25. The ring is crafted of 18 karat yellow gold and features twelve round brilliant cut diamonds, approximately .50 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.