In 1999, Bvlgari presented B.zero1, a ring that in twenty years has become a collector's item, one reworked by artists and architects alike. To celebrate its anniversary, Mauro Di Roberto, Jewellery Business Unit Managing Director at Bvlgari, tells of the genesis and evolution of an icon. "B.zero1 is the personification of Bvlgari design. Inspired by the quintessential symbol of Roman architecture, the Colosseum, it encapsulates every single Bvlgari trait: bold, nonconformist and unexpected. In these twenty years, B.zero1 has evolved thanks to its ability to adapt to the times, while continuing to preserve its design uniqueness and style. Reworked by Anish Kapoor and Zaha Hadid, in materials such as ceramic and marble, it has simply consolidated its role as an icon." Structure, shape and equilibrium merge in the ring's design, which stems from the principles of architectural construction and celebrates the tradition of ancient Rome.