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    A belle époque diamond bar brooch, circa 1910 The three collet-set old brilliant-cut diamonds, the largest to the centre, between graduating similarly and rose-cut diamond shoulders, diamonds approx. 1.05cts total, length 6.5cm

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An art deco emerald and diamond plaque brooch, circa 1920 Of chequerboard design, millegrain-set with square and triangular-cut emeralds and French-cut diamonds within a border of smaller single-cut diamonds, with a larger old brilliant-cut diamond to the centre, length 5.2cm., cased.

An early 20th century sapphire and diamond brooch pendant The openwork plaque of fine knife-wire, millegrain set brilliant and single-cut diamond detail, its centre issuing a stylised scroll of similarly set diamonds and calibré-cut sapphires, to an oval mixed-cut sapphire drop, diamonds approx. 4.00ct. total, length 8.0cm.

A jadeite and diamond brooch Designed as a floral spray, set with intense green jadeite of very good translucency, carved as flowers, the largest measuring 30.6 x 21.9 x 2.8mm, highlighted with brilliant-cut diamonds, to stylised ribbons set with similarly-cut diamonds and baguette-cut diamond accents, mounted in 18k white gold, the diamonds estimated to weigh approximately 4.00 carats in total, brooch length 9.3cm

A ruby and diamond brooch, circa 1945 Designed as a bird fanning its tail feathers, set with single-cut diamonds, the head decorated with ruby eyes, and suspending a later briolette-cut diamond, single-cut diamonds approx. 1.45cts total, length 5.7cm, cased by N. Bloom & Son

An emerald and diamond handkerchief brooch, circa 1910 The lozenge-shaped surmount set with a step-cut emerald, within borders of old brilliant and single-cut diamonds and calibré-cut emeralds, suspending an openwork floral and foliate pendant designed to resemble folded lace, millegrain-set throughout with similarly cut diamonds and emeralds, terminating in a fringe of pear-shaped emerald and single-cut diamond drops, mounted in platinum and yellow gold.

A diamond spray brooch, circa 1965 Set with graduating ribbons of brilliant, baguette and single-cut diamonds, diamonds approximately 7.00 carats total, French assay marks

An enamel, gem-set giardinetto brooch, circa 1925 The finely pierced basket, millegrain-set throughout with single and brilliant-cut diamonds, highlighted with a row of calibré-cut sapphire and applied black enamel, to a single-cut diamond stem issuing carved coral corallium rubrum flowers and nephrite leaves, to a reverse engraved with floral motifs, diamonds approx. 0.40ct total, length 4.3cm