Item #: 147916 This is an authentic TIFFANY & CO 18K Yellow Gold Diamond Signature X Pendant Necklace. This stylish necklace is 18 karat gold necklace and hangs at collar length. The necklace features a X pendant with the crossovers lined in diamonds for a total carat weight of .19. 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.