Platinum (850) knife-edge necklace with alternating links of old-cut diamonds in claw setting, the neckline adorned with a knot and scroll element of old-cut and rose diamonds in seed, claw or closed settings. Ratchet clasp. Early 20th century. Gross weight : 29 g. The main stones are missing. Scratches. In its case with the form, quantified V.G., with accessory of disassembling and steel comb for the presentation of the principal reason in ornament of chignon.