This is an authentic TIFFANY Platinum Diamond .31ct Solitaire Engagement Ring 52 6. This exquisite classic platinum band features a sparkling .31 carats round brilliant cut diamond, I color, VS2 clarity with a prong setting. Enjoy this for yourself of for someone you love, from Tiffany & Co.! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.