This is an authentic TIFFANY & CO 18K Yellow Gold Elsa Peretti Eternal Circle Pendant Necklace. This one-of-a-kind Elsa Peretti designed necklace features a simple, yet dynamic circular gold pendant. This is a marvelous necklace for a distinctive look from Tiffany & Co.! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.