This is an authentic TIFFANY 18K Rose Gold Diamond Double Row Knot Ring size 56 or 7.5. The ring is crafted of 18 karat rose gold and features a knot motif set with round brilliant cut diamonds, approximately .32 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.