Bidspirit auction | ITALIAN BULGARI 18K GOLD &

ITALIAN BULGARI 18K GOLD & STEEL OPTICAL RING, C. 2000 - An Italian Bulgari (founded 1884, Rome) Optical collection spinning ring, circa 1990s–2000s, constructed of 18k white gold, stainless steel, and black onyx, total gross weight 22.2 grams. The heavy tapered band with hollowed interior shoulder galleries supports a broad, flat circular rotating disc head featuring a central gold S-curve swirl flanked by two recessed crescent-shaped black onyx inlays. The outer cylindrical rim of the rotating head is engraved twice with 'BVLGARI', separated on opposite sides by two small slotted screws. On the underside of the bezel, a circular steel backplate secured by two slotted screws is stamped twice in an arc with 'BVLGARI' around 'STEEL' at the center. The inner shank bears impressed marks reading 'BVLGARI', 'GOLD AND STEEL', 'MADE IN ITALY', an Italian '750' fineness lozenge, and the Italian maker's punch '☆ 3765 AL', flanked on both sides by Swiss precious metal control hallmarks depicting a St. Bernard dog head and '750' within notched rectangular cartouches. jewelry, signet, spinner, modernist, geometric, illusion, unisex, designer, estate, luxury, accessory. Dimensions Ring size: 5 1/2 (US) Condition Condition appears consistent with age and regular wear. Surfaces exhibit moderate scratches, minor edge dings, worn rhodium plating, and dark tarnish, including oxidation inside the hollowed shoulder galleries. Light scuffing is visible on the black onyx inlays. Retaining screws and hallmarks remain intact and legible.