Bow brooch in 750 thousandths yellow gold and 850 thousandths platinum, openwork and set with thirty-four old and 8/8 brilliant-cut diamonds, the largest approx. 0.12 ct, pump clasp. French work of the 1950s. M. O. (partial): .stroke in a circle. P. Estimated total diamond weight: 0.50 ct Height : 4.6 cm - Width : 3.5 cm Gross weight : 11,1 g