Inspired by Rome's magnificent Colosseum, the iconic B.zero1 broke the rules of jewelry design in 1999 to capture the amphitheater's fluid geometry. Twenty years later, to celebrate the momentous anniversary of the collection, Bvlgari has reissued the original five-band ring, the boldest B.zero1 iteration. Featuring its distinctive spiral born of the tubogas technique, the ring is engraved with 'XX Anniversary' on its internal ferrule, marking it as a collector's item for daring trailblazers and independent style icons. B.zero1 XXth Anniversary five-band ring in 18 kt yellow gold. Available in different sizes.