Art Deco diamond and onyx slim strap bracelet by Cartier, c.1920, with a line of round brilliant cut diamonds along the openwork middle, framed by calibre cut onyx and single cut diamonds alternating at the articulated link sections, mounted in platinum, signed 'CARTIER' and with serial number 6441544
Art Deco diamond line bracelet by Boucheron, Paris c.1920, box collet set with 30 graduated old round brilliant cut diamonds, mounted in platinum, signed 'BOUCHERON PARIS', workshop mark appears to be for FB, French assaymarks, approximately 11cts in all
Art Deco diamond and onyx slim strap bracelet by Cartier, c.1920, with a line of round brilliant cut diamonds along the openwork middle, framed by calibre cut onyx and single cut diamonds alternating at the articulated link sections, mounted in platinum, signed 'CARTIER' and with serial number 6441544