Cazzaniga, 18ct gold, tourmaline, diamond and enamel ring. Centring an emerald-cut tourmaline weighing approximately 3.15 carats, within a surround of brilliant-cut diamonds together weighing approximately 0.40 carats, to tapered shoulders detailed with foliate red and blue enamel decoration, signed Cazzaniga, Roma, size S,. Weight approximately 14.2 grams.