YEARS 1930 RECTANGULAR DIAMOND RING The openwork top is paved with small brilliant-cut (old-cut) diamonds, including a larger one in the setting. Set in platinum. French work, maker's mark illegible. Gross weight: 4.37 g. Finger size: 53. Size: 1.8 x 1.2 cm. A diamond and platinum rectangular ring, circa 1930. French assay mark and illegible maker's mark. Gross weight : 4,37 gr. Size : 53. Dimensions : 1,8 x 1,2 cm.