This is an authentic TIFFANY Platinum Diamond .18ct Harmony Solitaire Engagement Ring size 49 or 4.75. The ring is crafted of platinum and features a round brilliant cut diamond center stone weighing approximately .18 carats, with F color and VVS1 clarity. Enjoy this lovely ring with the unforgettable style of Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.