This is an authentic TIFFANY Platinum Diamond .21ct Round Brilliant Harmony Engagement Ring 50 5.5. The ring is crafted of platinum and features a center round brilliant cut diamond weighing approximately .21 carats, with I color and VVS1 clarity. The ring also includes additional diamond accents along the band, approximately .16 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.