DIAMOND, NATURAL AND SYNTHETIC RUBY BUTTERFLY BROOCH, CIRCA 1930 The insect with openwork wings set with 274 single-cut, old European-cut and round diamonds weighing approximately 18.00 carats, the body, wings and eyes accented with cabochon and round natural and synthetic rubies, mounted in platinum.
SYNTHETIC RUBY AND DIAMOND BANGLE, 1940S The hinged bangle designed as a series of polished conical links set to each terminal with cabochon synthetic rubies, accented with circular- and single-cut diamonds, inner circumference approximately 155mm.
Edwardian Synthetic Ruby, Ruby, and Diamond Pendant, Retailed by Koch, centering a pear-shaped synthetic ruby measuring approx. 9.00 x 5.40 x 3.90 mm, set in a flexible mount framed by rose-cut diamond melee, further set with circular-cut rubies and rose-cut diamond melee, millegrain accents, platinum-topped gold mount, suspended from a platinum delicate baton link chain, spaced by old European-cut diamonds, approx. total diamond wt. 2.10 cts., lg. 2, 16 in., within a signed fitted box.
A late 19th century diamond, ruby, synthetic ruby, paste and cultured pearl brooch Modelled a graduated old brilliant-cut diamond crescent with entwined old-cut diamond and vari-cut ruby and synthetic ruby serpent with green paste eyes, and later single cultured pearl accent, mounted in silver and gold, circa 1890
A diamond and synthetic ruby bow brooch, circa 1940. The openwork lattice decorated with old brilliant and single-cut diamonds, terminating in engraved tassels with calibré-cut synthetic ruby and single-cut diamond highlights, length 8.9cm.
NATURAL PEARL, RUBY, SYNTHETIC RUBY AND DIAMOND BROOCH, EARLY 20TH CENTURY Set with a cushion-shaped ruby weighing 4.10 carats and a small synthetic ruby, highlighted with circular-, single-cut and rose diamonds, suspending a natural pearl drop measuring approximately 9.20 x 12.35 x 15.00m, two small diamonds deficient.
DIAMOND AND SYNTHETIC RUBY BRACELET, 1930S. Of geometric design, set with step-, carré-, circular-cut and baguette diamonds, accented with step-cut synthetic rubies, length approximately 200mm, signed Marc, French assay and maker's marks, the centre detachable and may be worn as a clip.
RUBY, SYNTHETIC RUBY AND DIAMOND TIARA. The front of festoon and heart design set with brilliant-, step-cut and marquise-shaped diamonds, embellished with calibré-, French-cut, baguette and pear-shaped rubies and synthetic rubies, inner circumference approximately 150mm, with four optional size fittings to reverse, fitted case.