This is an authentic TIFFANY Platinum Diamond .19ct Solitaire Engagement Ring 51 5.75. This exquisite ring is crafted of platinum and features a sparkling round brilliant cut diamond weighing approximately .19 carats. This is a delicately beautiful ring with the timeless elegance of Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.