CARTIER, A DIAMOND BAR BROOCH in platinum and yellow gold, set to the centre with an old step cut...

In a platinum and yellow gold arrow-shaped frame set with fifty-five old European and rose cut diamonds, 2.43 cts total, with a pear shaped cultured pearl drop, 9.10 gr.Centre old European cut diamond

the plain uniform bar set to the centre with an old round brilliant cut diamond and two similar slightly smaller diamonds at the terminations, unmarked white on yellow metal tests for platinum on 18ct

AN ART DECO SAPPHIRE AND DIAMOND BAR BROOCH in yellow gold and platinum, the tapering bar set with a floral cluster of diamonds to the centre, flanked by rows of graduated cushion cut blue sapphires,

AN EXQUISITE BELLE EPOQUE PINK TOPAZ AND DIAMOND BROOCH in yellow gold and platinum, set to the centre with a cushion cut pink topaz of approximately 7.35 carats, within two concentric borders of old

Rubellite diamond bar brooch : Around 1920 Center set with a staircase cut rubellite, entouraged by 22 old cut diamonds. Yellow gold 18 ct, platinum. L. 4.5 cm, 4.3 g. // Rubellit-Diamant-Stabbrosche

Bar brooch: Eagle's head hallmark / C (insect) C Including an antique platinum topped 14k yellow gold stylized circle brooch set with two round rubies, multiple rose-cut diamonds and two old mine-cut

AN ANTIQUE DIAMOND HARE BROOCH in platinum and yellow gold, set with old mine cut and rose cut diamonds, accented by a cabochon ruby eye and engraved fur detailing, no assay marks, 3.8cm, 5.8g. Accomp

AN ANTIQUE DIAMOND HARE BROOCH in platinum and yellow gold, set with old mine cut and rose cut diamonds, accented by a cabochon ruby eye and engraved fur detailing, no assay marks, 3.8cm, 5.8g.

NO RESERVE - AN ANTIQUE ART NOUVEAU DIAMOND AND OPAL BAR BROOCH in 15ct yellow gold, set with an old cut diamond and an opal cabochon within two scrolling bars, stamped 15, 4.0cm, 3.9g.

AN ANTIQUE DIAMOND BAR BROOCH in yellow gold and silver, set with a cluster of old cut diamonds on a tapering bar set with further old cut diamonds, the diamonds all totalling 0.4-0.5 carats, no assay

AN ANTIQUE RUBY AND DIAMOND BAR BROOCH in yellow gold, set with a cushion cut ruby within a border of old cut diamonds, between half-crescent moon shaped motifs set with alternating rubies and diamond

AN ANTIQUE PEARL AND DIAMOND BAR BROOCH in 18ct yellow and white gold, set with seed pearls and old cut diamonds forming the date 1895 interspersed by a horseshoe motif, stamped 18C, 4.5cm, 4.1g.&nbsp

AN ANTIQUE DIAMOND AND PEAR CRESCENT MOON BAR BROOCH in yellow gold, the crescent moon set with old cut diamonds all totalling 1.4-1.6 carats, the bar terminated with a pearl of 5.6mm, no assay marks,

AN ANTIQUE EDWARDIAN PERIDOT, DIAMOND AND PEARL BAR BROOCH in yellow gold, set with a cushion cut peridot of 4.47 carats, accented by four old cut diamonds, the bar terminated at each end with a pearl

AN ANTIQUE DIAMOND LOCKET BROOCH in yellow gold, in Etruscan revival design set to the centre with an old cut diamond, with a glass covered locket panel to the reverse, no assay marks, 4.5cm, 10.8g.

Antique Silver Topped Gold and Diamond Bar Brooch, Russianthe platinum topped gold brooch with milgrain and floral detailing featuring four bezel set old European cut diamonds weighing approximately .

AN ANTIQUE EMERALD AND DIAMOND BAR BROOCH, 19TH CENTURY in yellow gold and silver, the tapering body set with clusters of step cut emeralds punctuated by rose cut diamonds, unmarked, 10.0cm, 12.7g.

A VINTAGE SAPPHIRE AND DIAMOND BAR BROOCH in 14ct yellow gold, in scrolling form set with a row of alternating round cut sapphires and old cut diamonds, stamped 14, 4.0cm, 4.5g. 

A FINE ANTIQUE DIAMOND AND ENAMEL BROOCH, 19TH CENTURY in yellow gold and silver, set to the centre with an old oval cut diamond of 2.14 carats within a scrolling border of black enamel, accented by a

AN ANTIQUE TURQUOISE AND DIAMOND BAR BROOCH in silver and yellow gold, set with a row of alternating round cabochon turquoise and old European brilliant cut diamonds, accented by rose cut diamonds, th

A VINTAGE RUBY AND DIAMOND FLOWER BROOCH in yellow gold, designed as a floral spray, set with old and round brilliant cut diamonds accented by round and step cut rubies, the diamonds all totalling 0.5

Three Gold and Gem-Set Bar Broochesto include: a platinum topped gold bar brooch set with old European cut diamonds weighing approximately .22 total carat (H-I color, VS2-SI1 clarity), completed with

AN ANTIQUE DIAMOND CRESCENT MOON BROOCH in yellow gold, designed as a crescent moon with a flower at the centre, set with an old European brilliant cut diamond, no assay marks, 2.4cm, 1.9g.

A DIAMOND AND ENAMEL BROOCH, EARLY 20TH CENTURY in platinum and yellow gold, the oval body of openwork design, set with a central old cut diamond between panels of blue guilloche enamel, accented by f