This is an authentic TIFFANY 18K Yellow Gold Diamond .33ct Elsa Peretti Diamonds by the Yard Pendant Necklace. This necklace is crafted of 18 karat yellow gold and features a bezel set single diamond weighing approximately .33 carats with F color and SI1 clarity. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.