18ct gold and diamond 'B-ZERO1' ring, Bulgari, the tapered flat hoop suspending an open work circular plaque, the obverse and reverse engraved Bvlgari swing set to the centre with a coiled band with raised edges, the sides engraved Bvlgari, the terminal accented by a brilliant-cut diamond, size S, Italian assay and maker's marks, signed Bulgari