AN ANTIQUE DIAMOND STAR BROOCH / PENDANT in yellow gold and silver, designed as a twelve rayed star set throughout with old and rose cut diamonds, the diamonds all totalling 4.0-4.5 carats, brooch fittings detachable, no assay marks, 3.8cm, 7.0g. 

Estimate £2,000 - £3,000

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 BLACK OPAL AND DIAMOND BROOCH / PENDANT in yellow gold and silver, set with an oval cabochon opal accented by clusters of old cut diamonds, no assay marks, 3.6cm, 6.0g. 

Estimate £2,000 - £3,000

FRED, A PEARL, DIAMOND, SAPPHIRE AND ENAMEL PENGUIN BROOCH in 18ct yellow gold, designed as a penguin set with a baroque pearl of 19.0mm, the eyes set with round cut sapphires accented by round brilliant cut diamonds, the body decorated with black en

Estimate £5,000 - £7,000

A VINTAGE FRENCH DIAMOND DOG BROOCH in 18ct yellow gold, designed as a seated dog, the hair made of articulated foxtail chain tassels, the eyes set with round brilliant cut diamonds, French assay marks, 4.5cm, 24.4g. 

Estimate £2,000 - £3,000

CARTIER, A PAIR OF CHRYSOPRASE, DIAMOND, ENAMEL AND RUBY BIRD BROOCHES, 1991 in 18ct yellow gold, each designed as a bird set with carved chrysoprase accented by round brilliant cut diamonds, the eyes set with round cut rubies, perched on branches de

Estimate £8,000 - £12,000

CARTIER, A VINTAGE GOLD DOUBLE PANTHERE BROOCH, 1990 in 18ct yellow gold, designed as a double headed panther, grasping a gold ring in their mouths, signed Cartier 1990 and numbered, French assay marks, 4.1cm, 19.1g. 

Estimate £4,000 - £6,000

VAN CLEEF AND ARPELS, AN IMPORTANT WHITE CORAL AND DIAMOND ROSE DE NOEL BROOCH in 18ct yellow gold, designed as a Christmas Rose set with a cluster of round brilliant cut diamonds and gold spines, the petals set with heart-shaped polished white coral

Estimate £10,000 - £15,000

HERMES, AN EMERALD DUCK BROOCH in 18ct yellow gold, designed as a flying duck, the eye set with a round cut emerald, signed Hermes Paris and numbered, indistinct French assay marks, 5.5cm, 17.1g. 

Estimate £4,000 - £6,000

AN ART DECO DIAMOND BROOCH, 1930S designed as an open circle accented by a geometric bow, set throughout with transitional and baguette cut diamonds, the diamonds all totalling 6.0-6.5 carats, no assay marks, 3.7cm, 11.9g. 

Estimate £3,000 - £5,000

A PAIR OF DIAMOND CLIP BROOCHES each openwork clip in identical design, set throughout with single cut diamonds and accented by baguette cut diamonds, the diamonds all totalling 5.5-6.5 carats, no assay marks, 3.5cm each, total weight 27.0g. 

Estimate £5,000 - £7,000

MARCUS, AN ART DECO RUBY AND DIAMOND BAR BROOCH set with transitional cut diamonds and French cut rubies, signed MARCUS, no assay marks, 4.9cm, 4.8g. 

Estimate £1,000 - £1,500

A GEMSET JARDINIERE BROOCH, 1950S in 18ct white gold, modelled as plant in a stemmed pot, set with carved rubies, cabochon sapphires and emeralds and brilliant and baguette cut diamonds, indistinct assay mark, stamped 750, 3.3cm, 10.6g.

Estimate £2,500 - £3,500

AN ART DECO SAPPHIRE AND DIAMOND BROOCH the oval pierced brooch set throughout with rectangular step cut and calibre cut sapphires and old and single cut diamonds, the diamonds all totalling 1.3-1.5 carats, no assay marks, 4.9cm, 11.6g. 

Estimate £3,000 - £5,000

AN ANTIQUE DIAMOND, PEARL, ENAMEL AND RUBY CADUCEUS BROOCH in yellow gold and silver, designed as a caduceus, the snakes set with old and rose cut diamonds, the eyes set with round cabochon rubies, the wings decorated with blue enamel, accented by tw

Estimate £2,000 - £3,000

AN ANTIQUE NATURAL PEARL AND DIAMOND STAR BROOCH in yellow gold and silver, designed as an eight rayed star set to the centre with a pearl of 11.9mm, accented throughout with old and rose cut diamonds, no assay marks, 3.0cm, 8.9g. Accompanied by a ge

Estimate £5,000 - £7,000

AN ANTIQUE OPAL, DIAMOND AND ENAMEL BROOCH in platinum and yellow gold, set with a rectangular cabochon opal, in a scrolling border of white enamel set with an old cut diamond of approximately 0.73 carats and further old cut diamonds, French import m

Estimate £3,000 - £5,000

MAUBOUSSIN, A SAPPHIRE AND DIAMOND LEAF BROOCH in 18ct yellow gold, designed as a stylised leaf set with alternating round cut sapphires and round brilliant cut diamonds, signed Mauboussin Paris, French assay marks, 7.0cm, 12.9g. 

Estimate £4,000 - £6,000

GUBELIN, A VINTAGE DIAMOND SPRAY BROOCH designed as a stylised foliate spray set with round brilliant cut diamonds, the diamonds all totalling 1.7-1.9 carats, signed Gubelin and numbered, stamped 750, 7.0cm, 16.8g. 

Estimate £1,000 - £1,500

BULGARI, A FINE VINTAGE DIAMOND BROOCH the scrolling brooch set throughout with round brilliant and baguette cut diamonds, the diamonds all totalling 10.0-11.0 carats, signed Bulgari, no assay marks, 6.7cm, 27.9g. Accompanied by a Bulgari jewellery b

Estimate £10,000 - £15,000

AN IMPORTANT BELLE EPOQUE CEYLON NO HEAT SAPPHIRE, DIAMOND AND PEARL BROOCH in platinum and yellow gold, in foliate design set with an oval cut sapphire of 14.80 carats accented by round brilliant, old and rose cut diamonds, the diamonds totalling ap

Estimate £50,000 - £70,000

A DIAMOND, RUBY AND ENAMEL FROG ON A LEAF BROOCH designed as a frog on a leaf, the frog pave set throughout with round brilliant cut diamonds, the eyes set with cabochon rubies, the leaf decorated with green and orange plique-a-jour enamel and accent

Estimate £1,500 - £2,500

A FINE ANTIQUE DIAMOND BROOCH in yellow gold, set to the centre with an old European cut diamond of approximately 2.55 carats surmounted by a curved row of graduated old European cut diamonds, suspending three rows of old and rose each terminated wit

Estimate £20,000 - £30,000

A SAPPHIRE, DIAMOND, RUBY AND ENAMEL DRAGONFLY BROOCH the body set with a row of oval cut sapphires, the eyes set with cabochon rubies, the wings decorated with pearlescent, blue and red enamel and accented by single cut diamonds and further sapphire

Estimate £6,000 - £8,000

AN ANTIQUE RUBY, SAPPHIRE AND DIAMOND PHEASANT BROOCH in 18ct yellow gold and silver, designed as a pheasant set throughout with variously cut sapphires and rubies, old and rose cut diamonds, the eye set with a round cabochon ruby, French import mark

Estimate £5,000 - £7,000

AN ANTIQUE FRENCH AGATE CAMEO BROOCH in 18ct yellow gold, set with an oval agate cameo carved to depict the bust of a classical woman with a wreath of oak and laurel leaves in her hair, French assay marks, 4.6cm, 32.7g. Accompanied by a fitted antiqu

Estimate £1,000 - £1,500

AN ANTIQUE SAPPHIRE, PEARL AND DIAMOND BAR BROOCH in yellow gold, designed as a row of old cut diamonds, terminating at each end with a hoop set with a round cabochon sapphire and a pearl, no assay marks, 4.0cm, 5.2g.

Estimate £400 - £600

A MOONSTONE AND DIAMOND FLOWER BROOCH / PENDANT designed as a stylised flower set with a round cabochon moonstone and old cut diamonds, the diamonds all totalling 5.0-5.5 carats, JD&S maker's mark, no assay marks, 4.0cm, 15.8g. 

Estimate £4,000 - £6,000

A VINTAGE DIAMOND LILAC SPRAY BROOCH designed as a bouquet of lilacs tied with a bow, set with round brilliant and baguette cut diamonds all totalling 6.5-7.0 carats, signed HAB, no assay marks, 8.5cm, 29.7g.

Estimate £2,500 - £3,500

A DIAMOND FEATHER BROOCH designed as a stylised feather, set throughout with single and baguette cut diamonds all totalling 5.0-5.5 carats, no assay marks, 10.0cm, 35.4g.

Estimate £3,000 - £5,000

AN ANTIQUE NATURAL BLISTER NACREOUS PEARL, RUBY AND DIAMOND TURTLE BROOCH in yellow gold and silver, set with a baroque pearl of 29.9mm in a border of round cut rubies, the articulated body set with rose cut diamonds, the eyes set with round cut rubi

Estimate £15,000 - £20,000

AN ANTIQUE DIAMOND CORONET BROOCH

Estimate £1,200 - £1,600

A MODERNIST GEMSET BROOCH in 18ct yellow gold, the rectangular openwork brooch set with cabochon moonstones, green tourmaline, amethyst, sapphire, star ruby and emerald, accented by a rectangular step cut green tourmaline, a rutilated quartz and roun

Estimate £1,000 - £1,500

AN ART DECO DIAMOND AND ONYX BAR BROOCH in platinum and gold, set with a row of old cut diamonds totalling 4.0-4.5 carats, the principal diamonds weighting approximately 1.21 carats and 1.11 carats, accented by rose cut diamonds and calibre cut onyx,

Estimate £6,000 - £8,000

A FRENCH YELLOW SAPPHIRE, DIAMOND AND WOOD FLOWER BROOCH in 18ct yellow gold, comprising a piece of wood carved to depict a flower, set with a cushion cut yellow sapphire, accented by round brilliant cut diamonds, French maker's mark, signed CR, Fren

Estimate £4,000 - £6,000

BOUCHERON, A DIAMOND AND SAPPHIRE SPRAY BROOCH in 18ct yellow gold, designed as an abstract spray set with old, round brilliant and single cut diamonds and round cut sapphires, signed Boucheron Paris, French assay marks, 7.0cm, 24.9g. 

Estimate £4,000 - £6,000

CARTIER, AN ART DECO CORAL, DIAMOND, PEARL AND ENAMEL BLACKAMOOR BROOCH in 18ct yellow gold, the black enamelled face surmounted by a turban relieved in white and black enamel, accented by rose cut diamonds and coral, the earrings set with pearls, si

Estimate £3,000 - £5,000

AN ANTIQUE NATURAL SALTWATER PEARL AND DIAMOND EN TREMBLANT FLORAL SPRAY BROOCH in yellow gold, designed as a floral spray set throughout with old and rose cut diamonds and pearls, the flower heads set en tremblant, the diamonds all totalling 8.0-9.0

Estimate £15,000 - £20,000

TIFFANY & CO, A NATURAL SALTWATER PEARL AND ENAMEL FLOWER BROOCH in yellow gold, designed as a flower set with a pearl of 8.9mm, the petals relieved in black enamel, signed Tiffany & Co, no assay marks, 4.0cm, 12.8g. Accompanied by a gemmological rep

Estimate £2,500 - £3,500

AN ANTIQUE DIAMOND FLOWER BROOCH / PENDANT in yellow gold and silver, designed as a flower set throughout with old and rose cut diamonds, the diamonds all totalling 3.5-4.0 carats, no assay marks, 2.9cm, 12.5g. 

Estimate £2,500 - £3,500

AN ANTIQUE NATURAL SALTWATER PEARL AND DIAMOND BROOCH set with a pearl of 8.2mm in a double border of old cut diamonds and further pearls, the diamonds all totalling 2.5-3.0 carats, no assay marks, 2.7cm, 8.5g. Accompanied by a gemmological report st

Estimate £4,000 - £6,000