Spectacular 'Pampille briolette' necklace, 1930 (diamonds & platinum)

Decorated at the front with cascading baguette-cut diamond and diamond collet tassels, each terminating with a briolette-cut diamond, suspended by a single and old european-cut diamond pierced cap, from the neckchain of alternately-set baguette and marquise-cut diamond segments, enhanced by rectangular-cut diamond spacers, mounted in platinum, one briolette-cut diamond deficient, circa 1930, with French assay marks and maker's marks Signed Van Cleef & Arpels, Paris, no. 33807 With maker's mark for Rubel Frères Accompanied by copy of the original sketch and commitment from Van Cleef & Arpels dated 1930