CARTIER, A VINTAGE MULTIGEM TUTTI FRUTTI PLANT POT BROOCH, CIRCA 1990 in 18ct yellow gold, the pot set with polished onyx and round brilliant cut diamonds, the plant set with carved chrysoprase and carnelian leaves, accented by cabochon sapphires and

Estimate £2,500 - £3,500

CARTIER, AN EMERALD DOLPHIN PIN / BROOCH in 18ct yellow gold, designed as a dolphin, the eye set with a round cut emerald, signed Cartier and numbered, French assay marks, 2.4cm, 5.7g. Accompanied by a Cartier box. 

Estimate £600 - £800

KUTCHINSKY, A VINTAGE ENAMEL AND DIAMOND LEOPARD BROOCH, 1968 in 18ct yellow gold, designed as a leopard relived in black enamel, the eyes set with rows of round brilliant cut diamonds, full British hallmarks for London 1968, 6.0cm, 23.1g. 

Estimate £1,000 - £1,500

KUTCHINSKY, A VINTAGE EMERALD AND DIAMOND CHICK BROOCH in 18ct yellow gold, designed as a stylised chick, the eye set with a round cut emerald in a border of round brilliant cut diamonds, signed Kutchinsky, partial British hallmarks, 3.0cm, 16.5g. 

Estimate £800 - £1,200

KUTCHINSKY, A VINTAGE CLOWN BROOCH in 18ct yellow gold, designed as a clown playing the violin, signed Kutchinsky, stamped 750, 4.0cm, 20.0g. 

Estimate £600 - £800

VAN CLEEF & ARPELS, A DIAMOND AND ENAMEL FROG BROOCH in 18ct yellow gold, designed as a frog relieved in green enamel, the eyes set with round brilliant cut diamonds, signed V.C.A. and numbered, French assay marks, 3.5cm, 13.5g. 

Estimate £6,000 - £8,000

A MULTICOLOURED SAPPHIRE AND DIAMOND BROOCH in 18ct white gold, set with a cushion cut yellow sapphire, blue sapphire, peach sapphire and purple sapphire, accented by round brilliant and marquise cut diamonds, the sapphires all totalling 9.0-9.5 cara

Estimate £7,000 - £9,000

BOUCHERON, A VINTAGE CORAL AND DIAMOND FLOWER BROOCH in 18ct white and yellow gold, comprising three carved coral flowers set with round brilliant cut diamonds, the engraved stems accented by a leaf set with further diamonds, signed Boucheron Paris,

Estimate £6,000 - £8,000

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

NO RESERVE - A FINE VINTAGE DIAMOND BROOCH in platinum, the stylised brooch set throughout with round brilliant and baguette cut diamonds, the diamonds all totalling 15.0-17.0 carats, stamped PT950, 5.5cm, 45.7g. 

Estimate £6,000 - £8,000

PETOCHI, A RUBY AND DIAMOND BROOCH HANDKERCHIEF BROOCH pave set with round brilliant cut diamonds and calibre cut rubies, the diamonds all totalling 6.0-7.0 carats, signed G PETOCHI, no assay marks, 5.2cm, 14.4g. 

Estimate £5,000 - £7,000

A DIAMOND AND RUBY TARGET RING in yellow gold, set with an old marquise cut diamond of approximately 2.50 carats in a border of calibre cut rubies, no assay marks, size O1/2 / 7.5, 4.3g. 

Estimate £12,000 - £16,000

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

AN ART DECO DIAMOND AND ONYX BAR BROOCH in platinum, set with a principal old cut diamond of 1.18 carats in a border of polished onyx, accented by a row of ten graduated old cut diamonds and further onyx, within a frame of further old and rose cut di

Estimate £5,000 - £7,000

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

CARTIER, A VINTAGE CHARM BROOCH in 18ct yellow gold, designed as a safety pin suspending three charms designed as a teddy bear, a baby carriage and a rocking horse, signed Cartier and numbered, stamped 750, 5.3cm, 20.0g.

Estimate £2,500 - £3,500

SABBADINI, A PAIR OF DIAMOND ROSE BROOCHES in 18ct yellow gold, each designed as a textured rose and set with a round brilliant cut diamond, signed Sabbadini made in Italy, stamped 750, 5.1cm and 3.0cm, total weight 65.5g.

Estimate £2,500 - £3,500

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

AN ANTIQUE BELLE EPOQUE DIAMOND BROOCH / PENDANT in yellow gold, designed as a bow suspending a foliate swag and a series of drops, set throughout with old and rose cut diamonds, the principal diamond weighing approximately 1.24 carats, the diamonds

Estimate £4,000 - £6,000

AN ANTIQUE DIAMOND CIRCLE BROOCH in platinum and 18ct white gold, designed as three interlocking circles with three foliate style plaques, set throughout with old and rose cut diamonds, the diamonds all totalling 8.0-10.0 carats, no assay marks, 7.2c

Estimate £6,000 - £8,000

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 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

AN ANTIQUE DIAMOND EN TREMBLANT BROOCH in yellow gold, designed as a spray of foliage set throughout with rose cut diamonds, the two flowers set en tremblant, no assay marks, 10.2cm, 37.8g. 

Estimate £4,000 - £6,000

AN ANTIQUE PORTUGUESE DIAMOND BOW BROOCH in silver, designed as a bow set throughout with rose and table cut diamonds, no assay marks, 7.0cm, 35.0g. 

Estimate £4,000 - £6,000

AN ANTIQUE PEARL, RUBY AND DIAMOND CRESCENT MOON BROOCH in 18ct yellow gold and platinum, set with a pearl of 9.8mm accented by alternating round cut rubies and old cut diamonds, no assay marks, 4.7cm, 4.9g.

Estimate £300 - £500