This is an authentic TIFFANY Platinum Diamond 1.26ct Solitaire Engagement Ring size 51or 5.75. The ring is crafted of platinum and features a six prong-set round brilliant cut diamond weighing approximately 1.26 carats, with I color and VS2 clarity. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.