This is an authentic TIFFANY Platinum Diamond 1.83ct Solitaire Pendant Necklace. The necklace is crafted of platinum and features a four-prong set round brilliant cut diamond, approximately 1.83 total carat weight with J color and VS1 clarity grade. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.