This is an authentic TIFFANY Platinum Diamond .28ct Solitaire Engagement Ring 49 or 5. The ring is crafted of platinum and features a classic six prong setting holding a single round brilliant cut diamond, approximately .28 carats, with H color and VS clarity. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.