DIAMOND, EMERALD AND ONYX 'PANTHèRE' BANGLE AND EARRINGS, CARTIER Circular-cut diamonds, buff-top onyx, pear-shaped emeralds, gold (French marks), bangle inner circumference 16.0 cm, earrings 1.9 cm, signed Cartier, numbered, red Cartier case US$60,000-80,000