Necklace in platinum 850 thousandths, dangling an articulated geometric motif adorned with an old-cut diamond in a beaded closed setting, enhanced by onyx motifs in a diamond rose pavement. Necklace features a fine chain with spring ring clasp and safety chain. French work circa 1920/30. Main diamond weight: approx. 0.80 ct. Gross weight: 7 g.- Length: 40.5 cm. One rose is missing.