This is an authentic TIFFANY 18K Yellow Gold Akoya Pearl 7.5mm Signature Strand Necklace. The necklace features a strand of 7.5mm cultured Akoya pearls and is finished with an 18 karat yellow gold signature 'X' box tab insert clasp. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.