Necklace with diamonds, onyx and carnelian

MATERIAL: white gold, diamonds, onyx and carnelian DESCRIPTION: made necklace with carnelian beads alternating with gold mesh embellished with brilliant-cut diamonds and onyx discs, in the middle big drop in onyx, bears the mark 750 MEASURE: closed lung cm 29 WEIGHT: 6.90 ct approximately, 66.6 g