This is an authentic TIFFANY 18K Yellow Gold Chain Necklace 18". This stylish chain is 18 karat yellow gold and features small links, and adjusts from 18" down to 16" with the jump ring. This necklace has a classic, distinctive look from Tiffany & Co! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.