KOHN, AN ART DECO LAPIS LAZULI, DIAMOND, RUBY, EMERALD AND ENAMEL FLOWER BASKET BROOCH the ornate basket set with polished lapis lazuli and old and single cut diamonds, accented by black and red enamel, the flowers set with round cut rubies and a rou

Estimate £10,000 - £15,000

AN ART DECO EMERALD AND DIAMOND BAR BROOCH set with five old European cut diamonds accented by a row of rectangular step cut emeralds, the diamonds all totalling 2.0-2.5 carats, no assay marks, 6.5cm, 5.2g. 

Estimate £800 - £1,200

AN ANTIQUE DIAMOND KEY BROOCH in yellow gold and silver, designed as a key set throughout with old and rose cut diamonds, the diamonds all totalling 2.2-2.4 carats, no assay marks, 5.9cm, 4.9g. 

Estimate £2,000 - £3,000

AN ANTIQUE ENAMEL, EMERALD, RUBY AND GARNET COCKATRICE BROOCH designed as a cockatrice, a mythical creature, the feathered head set with a rectangular step cut emerald, the eyes with round cabochon garnets, the feather decorated with pink and white e

Estimate £3,000 - £5,000

AN ANTIQUE DIAMOND BOW BROOCH designed as a bow set throughout with old cut diamonds, the diamonds totalling 10.0-11.0 carats, no assay marks, 4.5cm, 14.3g. 

Estimate £8,000 - £12,000

CARTIER, AN AGATE, RUBY AND DIAMOND BOW AND ARROW BROOCH designed as a bow and arrows in a quiver, the quiver set with polished agate accented by a rose cut diamond, the bow and arrows set with rectangular step cut rubies and further rose cut diamond

Estimate £6,000 - £8,000

CARTIER, AN ANTIQUE CORAL, PEARL AND DIAMOND BAR BROOCH in 18ct yellow gold and platinum, comprising a polished coral baton accented by rose cut diamonds and pearls, signed Cartier and numbered, French assay marks, 2.9cm, 1.7g. Accompanied by a fitte

Estimate £2,000 - £3,000

A GREEN TOURMALINE BROOCH the stylised brooch set with an octagonal step cut green tourmaline of approximately 15.14 carats, stamped 18K, 6.0cm, 14.5g. 

Estimate £1,000 - £1,500

VAN CLEEF & ARPELS, A DIAMOND AND ENAMEL PANDA BROOCH in 18ct yellow gold, designed as a panda pave set with round brilliant cut diamonds, relieved in black enamel, signed VCA and numbered, French assay marks, stamped 750, 2.9cm, 18.0g. 

Estimate £6,000 - £8,000

EVA SEGOURA, A MULTIGEM TOAD BROOCH in 18ct yellow gold, designed as a toad wearing a bow, set with a cluster of round cut tsavorite garnets, peridot, aquamarines and green sapphires, the bow set with round cut diamonds, the toes set with further rou

Estimate £5,000 - £7,000

VAN CLEEF & ARPELS, A MOTHER OF PEARL AND DIAMOND BOW BROOCH in 18ct yellow gold, designed as a bow, set with mother of pearl and round brilliant cut diamonds, signed VCA and numbered, French assay marks, stamped 750, 2.8cm, 7.5g. 

Estimate £3,000 - £5,000

CARTIER, A FINE ART DECO CITRINE AND DIAMOND FLOWER BROOCH, 1937, in yellow gold, designed as a flower set throughout with octagonal step, rectangular step and pear cut citrines, accented by old cut diamonds, no assay marks, 5.2cm, 22.5g. Accompanied

Estimate £8,000 - £12,000

VAN CLEEF & ARPELS, A CORAL AND PEARL ENVELOPE BROOCH in 18ct yellow gold, designed as an envelope set with a pear shaped cabochon coral and pearls, signed VCA and numbered, French assay mark, stamped OR750, 1.8cm, 4.2g. 

Estimate £600 - £800

CARTIER, A DIAMOND AND EMERALD DOG BROOCH designed as a dog set throughout with round brilliant cut diamonds, the eye set with a round cabochon emerald, the diamonds all totalling 4.0-4.5 carats, signed Cartier, no assay marks, 5.8cm, 14.4g. Accompan

Estimate £20,000 - £25,000

BOUCHERON, A CHRYSOPRASE, CORAL AND DIAMOND CAT BROOCH in 18ct yellow gold, designed as a cat set with round brilliant cut diamonds, the eyes set with marquise shaped cabochon chrysoprase, the nose set with polished coral, signed Boucheron Paris, Fre

Estimate £7,000 - £9,000

CARTIER, AN ART DECO AQUAMARINE AND DIAMOND BROOCH set with an octagonal mixed cut aquamarine of 31.00 carats, accented on each side by single and baguette cut diamonds, signed Cartier London, no assay marks, 4.7cm, 14.8g. 

Estimate £12,000 - £16,000

A RETRO MULTICOLOUR SAPPHIRE AND DIAMOND FEATHER BROOCH designed as a spray of feathers set with calibre cut sapphires and old European and single cut diamonds, accented by cushion and round cut blue and yellow sapphires, the sapphires totalling 28.0

Estimate £8,000 - £12,000

A FRENCH ART DECO DIAMOND PLAQUE BROOCH in platinum, the openwork brooch set with an old European cut diamond of approximately 1.75 carats, accented by old and single cut diamonds, the diamonds totalling 5.5-6.0 carats, French assay marks, 5.0cm, 16.

Estimate £5,000 - £7,000

LEITAO & IRMAO, AN ANTIQUE ANGEL'S SKIN CORAL AND DIAMOND CLUSTER BROOCH in yellow gold, set with an oval cabochon angel's skin coral in a cluster of old cut diamonds, the diamonds all totalling 3.5-4.0 carats, Portuguese assay marks for .800 finenes

Estimate £10,000 - £15,000

AN ANTIQUE DIAMOND BIRD AND CRESCENT MOON BROOCH designed as a bird holding a leaf with a crescent moon, set throughout with old and rose cut diamonds, the diamonds totalling 2.8-3.0 carats, no assay marks, 6.1cm, 9.7g. 

Estimate £3,000 - £5,000

AN ANTIQUE DIAMOND PEACOCK FEATHER BROOCH in yellow gold and silver, designed as a peacock feather, set throughout with old and rose cut diamonds, the diamonds totalling 5.5-6.0 carats, no assay marks, 10.2cm, 21.3g. 

Estimate £6,000 - £8,000

AN ANTIQUE DIAMOND AND NATURAL PEARL AIGRETTE in yellow gold, the aigrette set with a cluster of old cut diamonds, accented by a spray set with further old and rose cut diamonds and pearls, the diamonds all totalling 8.0-9.0 carats, the pearls rangin

Estimate £15,000 - £25,000

A RARE ANTIQUE DIAMOND AND BLUE GLASS GIARDINETTO BROOCH the pendant set with blue glass with an applied flower basket motif set with rose cut diamonds, in a border of further rose cut diamonds, no assay marks, 3.7cm, 15.9g.

Estimate £4,000 - £6,000

AN ART DECO EMERALD AND DIAMOND JABOT PIN BROOCH in 18ct white gold and platinum, set at each end with a polished emerald bead accented by rose cut diamonds, indistinct French maker's mark, French assay marks, 7.3cm, 6.8g. 

Estimate £2,000 - £3,000

A VINTAGE DIAMOND, ENAMEL AND RUBY STORK BROOCH designed as a stork, the wings decorated in blue, yellow, red and green enamel, accented by a row of rose cut diamonds, the eye set with a round cut ruby, an articulated transitional cut diamond drop su

Estimate £1,800 - £2,200

AN ANTIQUE FRENCH EMERALD, PEARL, DIAMOND AND ENAMEL BROOCH in 18ct yellow gold, set with an octagonal step cut emerald in a border of rose cut diamonds, accented by pearls and further emeralds, within a beaded border decorated with black enamel, bro

Estimate £4,000 - £6,000

AN ANTIQUE NATURAL PEARL AND DIAMOND BOW BROOCH designed as a bow, set with a pearl of 11.1mm accented by old and rose cut diamonds, suspending a pearl drop accented by single cut diamonds, the diamonds all totalling 4.5-5.0 carats, no assay marks, 6

Estimate £8,000 - £12,000

MARCHAK, AN EMERALD, RUBY AND DIAMOND CLIP BROOCH in 18ct yellow gold, set with a spray of pear cut emeralds accented by pear-shaped cabochon rubies and round brilliant cut diamonds, signed Marchak Paris and numbered, French assay marks, 6.5cm, 42.5g

Estimate £15,000 - £25,000

AN ANTIQUE DIAMOND BROOCH set throughout with rose cut diamonds, the diamonds totalling 6.0-6.5 carats, no assay marks, 4.9cm, 30.2g 

Estimate £4,000 - £6,000

AN ANTIQUE SAPPHIRE, DIAMOND AND ENAMEL BEE BROOCH in yellow gold and silver, designed as a bee, set with round cabochon and round cut sapphires accented by rose cut diamonds, the body decorated with striped of black enamel, no assay marks, 4.0cm, 12

Estimate £3,000 - £5,000

VAN CLEEF & ARPELS, A RUBY, SAPPHIRE AND EMERALD BIRD BROOCH designed as a bird perched on a branch, the body set with round cut rubies, sapphires and emeralds, the eye set with a round cut emerald, signed VCA and numbered, French assay marks, stampe

Estimate £10,000 - £15,000

CHAUMET, AN EMERALD AND DIAMOND BANGLE in 18ct yellow gold, the hinged bangle set with round brilliant and baguette cut diamonds, accented by round cut emeralds, signed Chaumet Paris, French assay marks, inner circumference 15.0cm, 32.0g. Accompanied

Estimate £7,000 - £9,000

A JADEITE JADE AND DIAMOND FLOWER SPRAY BROOCH designed as a floral spray, set throughout with cabochon jadeite jade and round brilliant cut diamonds, stamped 750, 6.2cm, 11.7g. 

Estimate £1,500 - £2,500