Item #: 178517 This is an authentic TIFFANY 18K Yellow Gold Diamond .50ct Elsa Peretti Diamonds by the Yard Pendant Necklace. This lovely necklace features a pendant that is made of 18 karat yellow gold with a large round brilliant cut diamond pendant, roughly 0.50 ct weight . Wear this piece for an unforgettable look only from Tiffany & Co! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.