18ct white gold 'B.Zero1' ring, Bulgari, the 8 mm wide ring centring a coiled band flanked by circular plaques, the sides engraved Bvlgari Bvlgari, size J, signed Bulgari, made in Italy, Italian maker's mark. Accompanied by a Bulgari certificate of authenticity numbered 05818651, dated 26 March 2009 .