This is an authentic TIFFANY 18K Yellow Gold Diamond .80ct Solitaire Pendant Necklace. The necklace is crafted of 18 karat yellow gold and features a single round brilliant cut diamond, weighing approximately .80 carats, with H color and VS1 clarity. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.