Item #: 1004378 This is an authentic TTIFFANY 18K Rose Gold Diamond .10ctw Ribbon Crossover Necklace. The necklace is crafted of 18 karat rose gold and features a round brilliant cut diamond weighing approximately .10 carats. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.