Cartier. Drawing of the necklace in the form of a serpent. Cartier. Necklace in the form of a serpent, paved with diamonds and set with two pear-cut emeralds of 205 and 206 carats.

A pair of emerald and diamond earrings. Photo Bonhams The earrings each set with a pear-cut emerald, weighing 10.83 and 9.96 carats, within a round brilliant-cut diamond surround, to a similarly set emerald-cut diamond surmount, all suspended from a line...