Item #: 986918 This is an authentic TIFFANY Platinum Diamond .21ct Round Brilliant Harmony Engagement Ring 46 3.75. The ring is crafted of platinum and features a round brilliant cut diamond, approximately .21 carats with I color and SI1 clarity. The band is also accented with round brilliant cut diamonds weighing approximately .21 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.