CARTIER, A FINE VINTAGE TURQUOISE, RUBY AND DIAMOND BIRD BROOCH, CIRCA 1955 in 18ct yellow gold, the body set with a cabochon turquoise, the eye set with an oval cut ruby, the crest set with round brilliant cut diamonds, signed Cartier London and num

Estimate £15,000 - £20,000

VAN CLEEF & ARPELS, A DIAMOND AND ENAMEL PANDA BROOCH in 18ct yellow gold, designed as a panda set with round brilliant cut diamonds and decorated with black enamel, signed VCA and numbered, French assay marks, 2.8cm, 18.0g. 

Estimate £8,000 - £12,000

AN EXQUISITE ANTIQUE ART DECO FRENCH MULTIGEM JAPONISME BROOCH in 18ct white gold, designed as a bonsai tree set with polished coral, onyx, round cabochon and calibre cut demantoid garnets and round cabochon amethysts, accented by rose cut diamonds,

Estimate £8,000 - £12,000

A FINE ANTIQUE ART DECO FRENCH RUBY AND DIAMOND JABOT PIN in 18ct white gold and platinum, set with an old oval cut diamond of approximately 1.75 carats accented by further old cut diamonds, the other end set with an oval cut ruby of approximately 1.

Estimate £6,000 - £8,000

KUTCHINSKY, A MODERNIST DIAMOND FLOWER BROOCH, CIRCA 1971 in 18ct yellow and white gold, set to the centre with a cluster of round brilliant and marquise cut diamonds, the openwork petals accented by further round brilliant cut diamonds, the diamonds

Estimate £2,500 - £3,500

KUTCHINSKY, A MODERNIST DIAMOND STAR BROOCH AND EARRINGS SUITE, 1969 in yellow and white gold, the brooch designed as a stylised openwork star and accented by round brilliant cut diamonds, the diamonds totalling 1.3-1.7 carats, the clip earrings of s

Estimate £4,000 - £6,000

KUTCHINSKY, A VINTAGE SAPPHIRE AND DIAMOND BROOCH, 1959 in 18ct yellow gold, designed as a stylised spray of twisted and plain gold, set with two rows of round brilliant cut diamonds and accented throughout with round cut sapphires, the diamonds all

Estimate £2,000 - £3,000

TIFFANY & CO., AN ANTIQUE ART DECO LAPIS LAZULI AND DIAMOND BOW BROOCH in platinum and white gold, set with polished lapis lazuli accented by old European, single and transitional cut diamonds, signed Tiffany & Co., no assay marks, 5.0cm, 8.0g. 

Estimate £4,000 - £6,000

BULGARI, AN IMPORTANT BURMA NO HEAT RUBY, SAPPHIRE, EMERALD AND DIAMOND BROOCH, CIRCA 1950 in platinum, the geometric brooch set with a cabochon emerald of approximately 3.00 carats in a cluster of round cut sapphires, accented by round brilliant and

Estimate £50,000 - £70,000

A DIAMOND OARS BROOCH in white gold, designed as two crossed rowing oars, set with round brilliant and baguette cut diamonds, no assay marks, 4.5cm, 4.9g. 

Estimate £1,000 - £1,500

ALAN MARTIN GARD, A MODERNIST WATERMELON TOURMALINE AND DIAMOND BROOCH, 1968 in 18ct yellow gold, set with a large slice of watermelon tourmaline in a stylised frame accented by round brilliant cut diamonds, AMG maker's mark, full British hallmarks f

Estimate £2,500 - £3,500

ANDREW GRIMA, A MODERNIST DIAMOND BOW BROOCH, 1974 in 18ct yellow gold, designed as a stylised double bow, accented by round brilliant cut diamonds, signed GRIMA, full British hallmarks for London 1974, 5.2cm, 18.4g. 

Estimate £5,000 - £7,000

A MODERNIST TURQUOISE AND DIAMOND BROOCH, 1960S in 18ct yellow gold, the modernist brooch set with a swirl of cabochon turquoise, accented by round brilliant cut diamonds, HG maker's mark, partially obscured British hallmarks for London 1963, 5.9cm,

Estimate £2,500 - £3,500

A FINE ANTIQUE DIAMOND CRESCENT MOON BROOCH, 19TH CENTURY in yellow gold and silver, designed as a crescent set with a row of old and rose cut diamonds, the diamonds all totalling 2.0-2.2 carats, no assay marks, 2.5cm, 4.3g. 

Estimate £1,000 - £1,500

A CARVED GREEN TOURMALINE CAMEO BROOCH in yellow gold, comprising an engraved bar brooch suspending a circular disc set with a green tourmaline carved to depict the bust of man, no assay marks, 6.2cm, 34.2g. 

Estimate £1,500 - £2,500

A FINE ANTIQUE VICTORIAN DIAMOND AND ENAMEL SNAKE BROOCH in yellow gold, designed as a coiled snake, the head set with a cluster of rose cut diamonds, the body decorated with black enamel patterning, no assay marks, 4.7cm, 23.0g. 

Estimate £3,000 - £5,000

A FINE ANTIQUE VICTORIAN DIAMOND STAR BROOCH / PENDANT, 19TH CENTURY in yellow gold and silver, designed as a six rayed star, set throughout with old cut diamonds all totalling 3.5-4.0 carats, no assay marks, 4.0cm, 10.2g.

Estimate £2,000 - £3,000

AN ANTIQUE CAMEO BROOCH / PENDANT, 19TH CENTURY in yellow gold, set with a hard stone cameo of a Classical man in profile, in a border of eight additional cameos carved from various hard stones including lapis lazuli, malachite, agate and amethyst, a

Estimate £4,000 - £6,000

AN ANTIQUE GEMSET, BANDED AGATE AND ENAMEL HOLBEINESQUE BROOCH / PENDANT, 19TH CENTURY in yellow gold, set with a large banded agate in a border of black and white enamel, accented by old cut diamonds, a cabochon garnet, cabochon rubies and turquoise

Estimate £6,000 - £8,000

CARLO GIULIANO, AN ANTIQUE SPINEL AND ENAMEL BROOCH in yellow gold, set with a round cabochon spinel in an openwork border decorated with white, blue and green enamel, Carlo Giuliano maker's mark, no assay marks, 2.7cm, 6.8g. 

Estimate £3,000 - £5,000

TIFFANY & CO., AN EXQUISITE ANTIQUE ART NOUVEAU TURQUOISE, DIAMOND AND RUBY SCARAB BROOCH, EARLY 20TH CENTURY in yellow gold and platinum, of the Egyptian revival movement, set with a carved turquoise scarab beetle, in a surround of two snakes and lo

Estimate £10,000 - £15,000

AN ANTIQUE ENAMEL, RUBY AND DIAMOND BIRD BROOCH in yellow gold, set with a cushion cut ruby in a border of rose cut diamonds and a ruby eye, set throughout with rose cut diamonds, accented by red and green enamel, no assay marks, 4.2cm, 5.1g.

Estimate £1,500 - £2,500

A FINE DIAMOND BROOCH in platinum, the openwork brooch in foliate design, set throughout with transitional and round cut diamonds, the diamonds all totalling 6.5-7.0 carats, no assay marks, 4.8cm, 26.3g. 

Estimate £7,000 - £9,000

AN ANTIQUE DIAMOND DRAGONFLY BROOCH in yellow gold and silver, designed as a dragonfly, set throughout with old and rose cut diamonds, the diamonds all totalling 2.5-3.0 carats, no assay marks, 6.8cm, 10.9g. 

Estimate £2,000 - £3,000

CARLO GIULIANO, A FINE ANTIQUE PEARL, DEMANTOID GARNET, DIAMOND AND ENAMEL BROOCH in yellow gold, set with a pearl of 4.9mm, accented by round cut demantoid garnets and old cut diamonds, in an openwork border decorated with black and white enamel, ac

Estimate £1,500 - £2,500

DAVID WEBB, AN EXCEPTIONAL DIAMOND ROSE BROOCH in 18ct white gold platinum, designed as a rose with a flowering bud, the flowers pave set throughout with round brilliant cut diamonds, the stem and leaves set with baguette cut diamonds, the diamonds a

Estimate £40,000 - £60,000

BUCCELLATI, A PEARL AND DIAMOND SPRAY BROOCH in yellow gold and silver, designed as a floral spray set with pearls and rose cut diamonds, signed Buccellati, no assay marks, 5.5cm, 13.4g. 

Estimate £6,000 - £8,000

A FINE BELLE EPOQUE CONCH PEARL AND DIAMOND BOW BROOCH, EARLY 20TH CENTURY in yellow gold and platinum, designed as a bow set throughout with old cut diamonds all totalling 8.0-9.0 carats, suspending a conch pearl drop of 13.3mm, no assay marks, 7.0c

Estimate £20,000 - £25,000

TIFFANY & CO., A VINTAGE RUBY STAG BROOCH in 18ct yellow gold, designed as a textured stag, the eyes set with round cut rubies, signed Tiffany, stamped 18K, 4.5cm, 15.9g.  

Estimate £3,000 - £5,000

A DEMANTOID GARNET, DIAMOND AND RUBY CAT BROOCH in yellow gold, designed as a cat set throughout with round cut demantoid garnets and rose cut diamonds, the eyes set with round cut rubies, no assay marks, 5.0cm, 10.9g. 

Estimate £4,000 - £6,000

CARTIER, A DIAMOND FLOWER BROOCH in 18ct yellow gold, set to the centre with a cluster of old European cut diamonds, the diamonds all totalling approximately 1.00 carat, signed Cartier London and numbered, no assay marks, 4.5cm, 15.6g. 

Estimate £3,000 - £5,000

AN AQUAMARINE AND DIAMOND BOW BROOCH in white gold, designed as a bow set throughout with old cut diamonds, suspending a briolette cut aquamarine drop, no assay marks, 5.7cm, 16.2g. 

Estimate £5,000 - £7,000

VAN CLEEF & ARPELS, AN EXQUISITE ART DECO DIAMOND BROOCH, CIRCA 1936 in platinum, in scrolling design, set with transitional and baguette cut diamonds, the diamonds all totalling 7.0-8.0 carats, apparently unsigned, French assay marks, 4.9cm, 15.4g.

Estimate £15,000 - £20,000

AN ANTIQUE ENAMEL, DIAMOND AND RUBY MOTOR CAR BROOCH in yellow gold and silver, designed as a motorcar with articulated wheels, the body of the car relieved in green enamel, accented by rose cut diamonds and a round cut ruby, no assay marks, 3.8cm, 8

Estimate £1,500 - £2,500

A DIAMOND CLIP BROOCH in platinum and white gold, the brooch in a scrolling design, set with old European, old mine and single cut diamonds, accented by baguette cut diamonds, the diamonds all totalling 4.2-4.5 carats, no assay marks, 3.5cm, 15.7g. 

Estimate £2,500 - £3,500

AN ANTIQUE SAPPHIRE, DIAMOND, PEARL AND ENAMEL BROOCH in yellow gold, the navette shaped brooch set with an oval cabochon sapphire accented on each side by an old cut diamond, in a border of white and red enamel accented by pearls, no assay marks, 3.

Estimate £1,500 - £2,500

CARTIER, A VINTAGE DIAMOND ROSE BROOCH in 18ct yellow gold, designed as a rose with a flower and a blooming bud, the flower set to the centre with a round brilliant cut diamond, signed Cartier and numbered, stamped SWISS MADE and 750, 4.5cm, 15.7g. 

Estimate £2,000 - £3,000

CARTIER, A VINTAGE RUBY, CHRYSOPRASE AND DIAMOND TUTTI FRUTTI BROOCH designed as a Japanese bonsai tree, the body jewelled with round cut diamonds, the leaves and flowers set with cabochon chrysoprase and rubies, signed Cartier and numbered, 2.7cm, 7

Estimate £10,000 - £15,000

A LARGE AND FINE ANTIQUE DIAMOND ARROW BROOCH in yellow gold and silver, the brooch designed as an arrow set throughout with old cut diamonds, the diamonds totalling 7.5-8.0 carats, no assay marks, 13.0cm, 15.1g. 

Estimate £6,000 - £8,000

BOUCHERON, A PAIR OF DIAMOND AND ONYX TEDDY BEAR BROOCHES in 18ct yellow gold, designed as a pair of teddy bears, set with round brilliant cut diamonds and polished onyx, signed Boucheron and numbered, Boucheron maker's mark, French assay marks, stam

Estimate £3,000 - £5,000

CARTIER, A SAPPHIRE, DIAMOND AND ENAMEL FLOWER BROOCH in 14ct yellow gold, set to the centre with a cluster of round cut sapphires and a round brilliant cut diamond, the petals decorated with blue, white and yellow enamel, the leaf decorated with gre

Estimate £3,000 - £5,000

DAVID WEBB, A VINTAGE SAPPHIRE, DIAMOND AND CERAMIC FLOWER BROOCH in 18ct yellow gold, the ceramic brooch decorated in varicoloured shades of purple and blue, set with a cushion cut sapphire of approximately 1.50 carats, in a border of round brillian

Estimate £6,000 - £8,000

A DIAMOND BROOCH in platinum, in geometric design, set throughout with carre, baguette and round brilliant cut diamonds, the diamonds all totalling 4.0-4.5 carats, no assay marks, 3.8cm, 7.9g. 

Estimate £3,000 - £5,000

AN OPAL, EMERALD AND DIAMOND BUTTERFLY BROOCH in 18ct yellow gold and silver, the body set with old cut diamonds and round cut ruby eyes, the wings jewelled throughout with cabochon opals accented by octagonal step cut emeralds and old cut diamonds,

Estimate £10,000 - £15,000

ATTR. CARTIER, A SAPPHIRE, EMERALD, RUBY AND DIAMOND FLOWER BROOCH in 18ct white and yellow gold, one flower set with a cabochon ruby in a cluster of cabochon sapphires, the other set with a cabochon sapphire in a cluster of cabochon emeralds, the le

Estimate £14,000 - £18,000

BOUCHERON, A FINE FRENCH RUBY, SAPPHIRE AND DIAMOND MILITARY BROOCH in 18ct white gold and platinum, designed as an imperial eagle holding the Austrian flag taken at Solferino, perched on an arrow with a French horn motif, the insignia for the 24th b

Estimate £15,000 - £25,000

ALABASTER & WILSON, A DIAMOND SALMON BROOCH in 18ct white gold, designed as a jumping salmon, set throughout with marquise, baguette, trapeze and single cut diamonds, signed A&W, stamped 18CT, 4.9cm, 8.0g. 

Estimate £2,500 - £3,500

A FINE ANTIQUE DIAMOND MOTH BROOCH in yellow gold and silver, designed as a moth set throughout with rose cut diamonds, the diamonds all totalling 2.8-3.2 carats, no assay marks, 4.0cm, 16.1g. 

Estimate £3,000 - £5,000

AN ANTIQUE VICTORIAN MOONSTONE AND PEARL HEART BROOCH in yellow gold and silver, set to the centre with a heart shaped moonstone in a border of pearls, no assay marks, 2.9cm, 9.1g. 

Estimate £1,000 - £1,500

BOIVIN, A CARNELIAN SCORPION BROOCH, 1970s in 18ct yellow gold and silver, the scorpion with articulated pincers, legs and tail, the eyes set with cabochon carnelian, maker's mark, French assay marks, 7.0cm, 46.5g. This piece can be found on page 311

Estimate £15,000 - £20,000

NO RESERVE - AN ANTIQUE PORTUGUESE CHRYSOLITE BROOCH in yellow gold and silver, the oval body set to the centre with an oval cut chrysolite within three concentric rows of cushion and calibre cut chrysolites, no assay marks, 3.0cm, 11.9g. 

Estimate £600 - £800

AN ANTIQUE VICTORIAN DIAMOND CRESCENT MOON BROOCH in yellow gold and silver, set with a row of graduating old cut diamonds, no assay marks, 2.5cm, 5.6g.

Estimate £800 - £1,200

VAN CLEEF & ARPELS, A YELLOW DIAMOND AND WHITE DIAMOND COSMOS BROOCH in 18ct white gold, designed as a flower, set to the centre with a round brilliant cut yellow diamond of 0.41 carats, the petals set with round brilliant cut white diamonds, signed

Estimate £10,000 - £15,000

A FINE ANTIQUE DIAMOND AND DEMANTOID GARNET KNOT BROOCH, POSSIBLY RUSSIAN in 18ct yellow gold, set with an old cut diamond of approximately 0.90 carats and a round cut demantoid garnet of approximately 0.70 carats on an intertwined wire mount, appare

Estimate £4,000 - £6,000

A MULTI GEM, PLIQUE A JOUR ENAMEL AND DIAMOND BROOCH in silver and gold, designed as a stylised fir tree, set with row of cabochon turquoise, oval cut rubies, sapphires, emeralds and an orange sapphire, over a plique a jour enamel background accented

Estimate £5,000 - £7,000

NO RESERVE - AN ANTIQUE PORTUGUESE PINK PASTE GIRANDOLE PENDANT, EARLY 19TH CENTURY in silver, the foliate body set with foiled oval, cushion, pear and fancy cut pink paste stones, suspending three articulated drops set with further pink paste stones

Estimate £600 - £800

AN ANTIQUE NATURAL PEARL AND DIAMOND BROOCH in platinum, set to the centre with a natural pearl measuring 10.2mm, in a double border of old cut diamonds, no assay marks, 2.8cm, 7.3g. Accompanied by a gemmological report stating that the pearl is of n

Estimate £6,000 - £8,000

AN ANTIQUE NATURAL PEARL, RUBY AND DIAMOND SPIDER BROOCH in yellow gold, designed as a spider, the body set with a pearl, cabochon ruby and old cut diamond, the eyes set with round cabochon rubies, the legs set with rose cut diamonds, no assay marks,

Estimate £15,000 - £20,000

AN ANTIQUE OPAL AND RUBY HORSESHOE BROOCH in yellow gold, designed as a horseshoe set with a row of round cabochon opals and a row of cushion cut rubies, no assay marks, 3.7cm, 13.7g. Accompanied by an antique fitted box. 

Estimate £1,500 - £2,500

AN ANTIQUE DIAMOND EN TREMBLANT BROOCH, 19TH CENTURY in yellow gold and silver, the scrolling foliate body set throughout with old cut diamonds, suspending a detachable drop set with further old cut diamonds, central flower set en tremblant, the diam

Estimate £8,000 - £12,000