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A Belle Epoque diamond and pearl brooch, early 20th century. Of openwork floral design, millegrain-set throughout with old brilliant and rose-cut diamonds, suspending a pearl drop, French assay mark, length 2.8cm. #BelleÉpoque #brooch

Natural pearl, gem set and diamond brooch-pendant, Early 20th Century. Of open work foliate design set with cushion-shaped rubies, circular-cut emeralds, circular-cut and rose diamonds, suspending a natural pearl drop.

An early 20th century diamond and opal set brooch, designed as a three panel opal centre within old cut diamond set openwork scroll border, all supporting opal drop, all claw, collet and pave set in yellow and white metal, the reverse with detachable brooch. {ht}

An emerald and diamond hinged bangle Set to the front with three graduated step-cut treated emeralds, within an openwork surround of geometric design set throughout cushion-shaped, brilliant and rose-cut diamonds, cushion-shaped and brilliant-cut diamonds approx. 0.55ct total, inner diameter 6.0cm

A Belle Epoque diamond brooch/pendant circa 1905. The scrolling cartouche pierced and millegrain-set with cushion-shaped, old brilliant and rose-cut diamonds. #BelleÉpoque #brooch #pendant

A pair of amethyst and diamond clip brooches by Charlton & Co., circa 1935 Each shield-shaped brooch, centrally-set with a fancy-cut amethyst, surmounted by a row of brilliant-cut diamonds between two similarly-cut amethysts, diamonds approx. 0.30ct total, signed Charlton, length 3.6cm

DIAMOND BOW BROOCH, FRENCH, CIRCA 1915. The openwork bow of lace design set with numerous small old European-cut and single-cut diamonds, backed by black silk netting, mounted in platinum, assay mark.

Belle Epoque platinum bow brooch by Cartier Paris, with lines of calibre sapphires, small old brilliant cut diamonds and carved moonstone panels, signed Cartier with French assay marks France, Circa 1912

A BELLE EPOQUE DIAMOND AND SPINEL BROOCH , ca. 1910. Charming round openwork brooch, the border decorated with fine leaf motifs, the top with finely openwork band motifs. The centre set with an iridescent blue/violet spinel in a yellow gold mount and set with old European-cut diamonds and some rose-cut diamonds. French import marks. #BelleEpoque #antique #brooch

A pair of antique diamond pendent earrings, circa 1880. Each delicately pierced circular plaque within a border of rose-cut diamonds, to a gently tapering knifewire trellis set with similarly-cut diamonds and a circular surmount of similar pierced design, length 6.0cm. #antique #earrings