18ct gold, enamel and gem-set bangle, Portuguese. Modelled as a coiled serpent, set throughout with green, brown and yellow enamel, the head decorated with brilliant-cut diamonds together weighing approximately 0.65 carats, the tongue detailed with red enamel and four circular-cut rubies together weighing approximately 0.25 carats, Portuguese marks, inner circumference approximately 165 mm, gross weight 95.4 grams.