This is an authentic TIFFANY 18K Rose Gold Diamond .18ct Solitaire Pendant Necklace. The necklace is crafted of 18 karat rose gold and features a four prong set solitaire round brilliant cut diamond weighing approximately .18 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.