This is an authentic TIFFANY Platinum Diamond .21ct Harmony Solitaire Engagement Ring 53 6.25. The ring is crafted of platinum and features a round brilliant cut solitaire diamond weighing approximately .21 carat, with G color and VVS2 clarity. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.