Diamond double collet and platinum tracelink chain necklace, spaced by 101 short tubular platinum links crimp-collet set to each side with a round brilliant cut diamond, approximately 12cts in all
Art Deco graduated natural pearl and fancy intense blue diamond necklace, probably Edmond Frisch, New York, c.1920, the 0.68ct marquise cut diamond forming the clasp,
Diamond double collet and platinum tracelink chain necklace, spaced by 101 short tubular platinum links crimp-collet set to each side with a round brilliant cut diamond, approximately 12cts in all