Cartier, a ruby and chrysoprase ring, circa 1991, of bombé design, collet-set with carved
Cartier, a ruby and chrysoprase ring, circa 1991, of bombé design, collet-set with carved chrysoprase leaves and cabochon rubies, applied with black lacquer, mounted in gold, size L1/2, signed Cartier, dated 1991, numbered R03983, French assay mark for 18ct gold, French maker's mark