Item #: 1812314 This is an authentic TIFFANY 18K Yellow Gold Diamond Twist Link Necklace. The choker-style necklace is crafted of heavy 18 karat yellow gold and features twisted infinity motif links and approximately .90 total carat weight of round brilliant cut diamonds. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.