This is an authentic TIFFANY Platinum Diamond .53ct Solitaire Engagement Ring 54 6.75. This exquisite platinum ring features a knife edge band and a six prong set solitaire round brilliant cut diamond weighing approximately .53 carats, with F color and VS1 clarity. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.