Item #: 808085 This is an authentic TIFFANY Platinum Diamond .31ct Solitaire Lucida Engagement Ring 52 6. This exquisite four prong platinum engagement ring features a beautiful Lucida cut diamond with a total approximate carat weight of .31 carats, with G color and VS1 clarity. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.