Tank ring in yellow gold (750) with two bridges, set with a line of calibrated synthetic rubies in rail-setting, flanked by eight-eight and old-cut diamonds in bead-setting. Goldsmith's hallmark HF for the Hardellet brothers, 2 rue des Haudriettes. French work circa 1940. Gross weight: 12.4 g. - Finger circumference: 52. Minor wear scratches.