ART DECO RUBY AND DIAMOND BROOCH Of stylised epaulette form, the circular panel surmount with central baguette-cut diamond detail within a pav brilliant-cut diamond ground, to the widening lower section similarly set with a further rectangular-cut diamond accent and central cabochon ruby cluster, circa 1930, French marks for platinum, 10.7cm long. Image: Christies
An Art Deco blue sapphire and diamond plaque brooch, the open rectangular shaped platinum brooch collet set to the centre with an oval 1.52cts sapphire, surrounded by twenty grain set old cut diamonds weighing 0.30cts, having four diamond set cross bars linked with leaves totalling 0.68cts, the outer frame with thirty two collet set old cut diamonds totalling 0.76cts, all with millegrain finish and set with further diamonds, to a locking pin
PLATINUM AND DIAMOND CLIP-BROOCH, CARTIER, CIRCA 1925. Of open work, geometric design set in the center with 2 old European-cut diamonds weighing 6.07 and 5.99 carats, further set with baguette and old European-cut diamonds weighing approximately 5.95 carats, signed Cartier, numbered 37-16799.
Early Art Deco openwork diamond and onyx corsage brooch, c.1920, of geometric design formed by two graduated kite motifs, millegrain set with lines of diamonds and inset with onyx sections, the smaller kite hung below on two detachable lines of articulated collet diamonds, the whole suspending a polished pear shaped onyx inset with a round brilliant cut diamond.