This is an authentic BULGAR 18K Yellow Gold Adjustable B.Zero1 Pendant Necklace. This chic necklace is 18 karat gold and hangs below the collar. Suspended are three chains of gold. BVLGARI, for a look of classic elegance. Follow this item for alerts. Bulgari is a registered trademark of Bulgari. FASHIONPHILE is not affiliated with Bulgari.