This is an authentic TIFFANY Platinum Diamond .30ct Channel-Set Engagement Ring 51 5.75. The ring is crafted of platinum and features a diamond band weighing .18 total carat weight, and a center round brilliant cut diamond weighing approximately .30 carats, with F color and VVS2 clarity. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.