Item #: 1720678 This is an authentic TIFFANY 18K White Gold Diamond Signature X Pendant Necklace. This necklace is crafted of 18K white gold and features an X motif pendant accented with diamonds, weighing approximately .15 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.