Item #: 312071 This is an authentic TIFFANY Platinum Diamond .29ct Engagement Ring 46 3.75. This exquisite classic platinum band features a sparkling round brilliant cut diamond approximately .29ctw. Enjoy this ring with the classic craftsmanship, only from Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.