This is an authentic TIFFANY & CO 18K Yellow Gold Elsa Peretti Bottle Open Bottle Pendant Necklace. This stylish 18 karat yellow gold necklace is below the collar in length. The necklace features a open bottle that is an original design by Elsa Peretti. This is an excellent necklace with the unforgettable look of Tiffany & Co! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.