18ct white gold, tourmaline, diamond and Australian South Sea pearl ring, Autore, of bombe design centring a round 16.00 mm cultured pearl surmounted above an openwork collet decorated with rose and brilliant-cut diamonds, and circular-cut Paraiba tourmaline, the diamonds and tourmaline together stated to weigh 0.81 carat and 1.66 carats respectively, size O, signed Autore., accompanied by an Autore certificate of authenticity and pouch.