Item #: 1158380 This is an authentic TIFFANY Platinum Diamond .18ct Solitaire Engagement Ring size 48 or 4.5. The ring is crafted of platinum and features a round brilliant cut diamond weighing approximately .18 total carat weight, with E color and VS1 clarity. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.