139. CULTURED PEARL, ONYX AND DIAMOND PIN Ornamented with fringes of cultured pearls and onyx beads supported by a white gold and onyx element, paved with brilliant-cut and 8/8-cut diamonds, the whole held by a rock crystal and black enamel mechanism, numbered, French hallmarks for platinum (850°/00), length 5.50 cm, gross weight 14.16 g. CULTURED PEARL, ONYX AND DIAMOND PIN Decorated with fringes of cultured pearls and onyx beads, to a white gold and onyx element pavé-set with old brilliant-, single-cut diamonds and onyx, on a rock crystal and black enamel mount, numbered, French assay marks for platinum, length 5.50 cm, gross weight 14.16 grams.