This is an authentic BULGARI Stainless Steel 18K Yellow Gold Onyx Tubogas Ring 54 6.75. This ring is crafted of 18 karat yellow gold and stainless steel, and features a flexible band with a black onyx center inlay framed by the BVLGARI logo. This is a beautiful ring with the chic style of Bulgari! Follow this item for alerts. Bulgari is a registered trademark of Bulgari. FASHIONPHILE is not affiliated with Bulgari.