AN ART DECO PORTUGUESE DIAMOND AND RUBY PIERCED HEART BROOCH in yellow gold and platinum, designed as a witches heart pierced by an arrow, the heart set with rose cut diamonds, the arrow set with fancy cut diamonds and calibre cut rubies, Portuguese

Estimate £2,500 - £3,500

AN ANTIQUE PEARL, DIAMOND AND EMERALD FROG BROOCH in yellow gold and silver, designed as a frog, the body set with a blister pearl of 16.9mm, accented by rose cut diamonds, the eyes set with round cut emeralds, RJ maker's mark, no assay marks, 3.4cm,

Estimate £1,500 - £2,500

CARTIER, A FINE ANTIQUE DIAMOND HORSESHOE BROOCH, 1913, in platinum, designed as a horseshoe set with a row of old cut diamonds between two rows of rose cut diamonds, the diamonds all totalling approximately 4.16 carats, unsigned, numbered, French as

Estimate £10,000 - £15,000

AN ANTIQUE BELLE EPOQUE DIAMOND BROOCH the circular lattice brooch in foliate design, set with a principal old cut diamond of approximately 2.17 carats, accented by old European, transitional and single cut diamonds, the diamonds all totalling 6.0-7.

Estimate £8,000 - £12,000

CARTIER, A RUBY AND TURQUOISE LIZARD BROOCH in 18ct yellow gold, designed as a lizard set with a row of alternating cabochon rubies and turquoise, the body engraved throughout with scales, inscribed Made in France, signed Cartier Inc. and numbered, F

Estimate £6,000 - £8,000

A FINE MULTICOLOUR 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 c

Estimate £7,000 - £9,000

A DIAMOND SCROLL CLIP BROOCH, MID CENTURY the scrolling brooch set throughout with round brilliant cut diamonds, accented by tapered baguette cut diamonds, the diamonds all totalling 14.0-15.0 carats, no assay marks, 5.7cm, 25.2g. 

Estimate £8,000 - £12,000

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 VINTAGE MULTIGEM AND ENAMEL HARLEQUIN BROOCH in yellow gold, designed as the bust of a Venetian harlequin, set throughout with round cut diamonds, emeralds, sapphires, rubies and pearls, accented by black, white, green and brown enamel, no assay ma

Estimate £1,200 - £1,600

ATTR KARL ROTHMULLER, A FINE ANTIQUE NATURAL SALTWATER PEARL, RUBY AND DEMANTOID GARNET BROOCH in yellow gold and silver, the scrolling body set with pearls, round cut rubies, round and oval cut demantoid garnets, the central pearl of 11.7mm, no assa

Estimate £8,000 - £12,000

A FINE ANTIQUE SAPPHIRE AND DIAMOND BROOCH in yellow gold and silver, designed as a flower set with a cushion cut sapphire of approximately 1.00 carat in a cluster of old and rose cut diamonds, within a foliate style frame set with further old and ro

Estimate £12,000 - £16,000

VAN CLEEF AND ARPELS, AN ART DECO DIAMOND UN CERCLE BROOCH, CIRCA 1931, in platinum and 18ct white gold, designed as an open hinged circle, set throughout with round brilliant cut diamonds and accented by baguette cut diamonds, the round brilliant cu

Estimate £30,000 - £50,000

AN ANTIQUE NATURAL 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 rubies, the diamonds

Estimate £10,000 - £15,000

AN ANTIQUE RUBY AND EMERALD DRAGONFLY BROOCH in yellow gold, the body set with an oval cabochon ruby and row of calibre cut emeralds, the eyes set with round cut rubies, no assay marks, 7.3cm, 11.0g. 

Estimate £1,500 - £2,500

CARTIER, A DIAMOND AND LACQUER COCCINELLE BROOCH the red resin wings set with round brilliant cut diamonds, the head and legs relieved in black lacquer, set with further diamonds, signed Cartier Paris and numbered, stamped 18K, 2.8cm, 13.9g. 

Estimate £15,000 - £20,000

CARTIER, A PAIR OF FINE RETRO CITRINE AND DIAMOND CLIP BROOCHES each shield shaped clip set with square step, rectangular step and fancy cut citrines, accented by round brilliant cut diamonds, signed Cartier London, no assay marks, 2.8cm, total weigh

Estimate £15,000 - £20,000

AN ANTIQUE DIAMOND, RUBY AND ENAMEL FLORAL SPRAY BROOCH designed as a floral spray tied with a bow, the flowers decorated with red, green and blue enamel, accented by old and rose cut diamonds and round cut rubies, no assay marks, 8.0cm, 34.8g. 

Estimate £3,000 - £5,000

AN ANTIQUE NATURAL FRESHWATER PEARL AND DIAMOND SNAKE BROOCH in yellow gold, designed as a coiled snake, the eyes set with old cut diamonds, suspending a detachable pearl drop accented by further old cut diamonds, no assay marks, 5.0cm, 7.3g. With a

Estimate £1,500 - £2,500

A FINE ANTIQUE DIAMOND EN TREMBLANT BROOCH, 19TH CENTURY in yellow gold and silver, designed as a spray of foliage set throughout with old cut diamonds, the principal flower set en tremblant, the diamonds totalling 13.5-14.5 carats, no assay marks, 7

Estimate £10,000 - £15,000

AN ANTIQUE DIAMOND BROOCH, EARLY 20TH CENTURY the lattice brooch set throughout with old European and rose cut diamonds, suspending a fringe set with further diamonds, no assay marks, 6.6cm, 20.1g. 

Estimate £6,000 - £8,000

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 ART DECO FANCY COLOURED DIAMOND PLAQUE BROOCH the openwork brooch set with an old cut white, cognac and yellow diamond, within frames of old and single cut diamonds, the diamonds totalling 3.7-4.0 carats, no assay marks, 4.7cm, 9.1g.

Estimate £2,500 - £3,500

A JADEITE JADE, ONYX, DIAMOND AND RUBY BROOCH set with two round jadeite jade plaques carved in the Chinese style to depict birds, in borders of polished onyx, accented by transitional and single cut diamonds and calibre cut rubies, stamped 18K, 5.2c

Estimate £2,500 - £3,500

A DIAMOND AND CITRINE BUTTERFLY BROOCH BROOCH designed as a butterfly, the body set with an oval cut citrine of approximately 9.64 carats and a cluster of round brilliant cut diamonds, the wings set throughout with round brilliant and marquise cut di

Estimate £10,000 - £15,000