Trio, 18ct two-tone gold, South Sea pearl and gem-set brooch, modelled as a Maltese cross, centring a button-shaped South Sea pearl measuring approximately 14.7 mm. Within a surround of brilliant-cut diamonds, pear-cut sapphire and oval rubies cut en cabochon and further brilliant-cut diamonds, the sapphires together weighing approximately 2.00 carat, the rubies together weighing approximately 6.00 carats and the diamonds together weighing approximately 2.20 carats, measuring 42 mm x 42 mm.