AN AQUAMARINE AND DIAMOND BROOCH in 18ct white gold and platinum, set with rectangular step cut aquamarine of approximately 15.72 carats accented by old European, baguette and single cut diamonds, A&W maker's mark, stamped 18CT PT, 3.8cm, 11.0g. 

Estimate £3,000 - £5,000

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

AN ANTIQUE BOULDER OPAL AND DIAMOND SNAKE BROOCH in yellow gold, set with an oval cabochon boulder opal, the border designed as a coiled snake set with an old cut diamond, no assay marks, 2.1cm, 5.2g. 

Estimate £600 - £800

AN ANTIQUE NATURAL SALTWATER PEARL AND DIAMOND BROOCH, 19TH CENTURY in yellow gold and silver, set with three pearls of 7.0mm, 8.2mm and 7.4mm respectively, accented by old and rose cut diamonds, suspending a pearl drop of approximately 9.2mm accente

Estimate £3,000 - £5,000

A FRENCH DIAMOND, ENAMEL AND EMERALD CHEETAH CUB BROOCH in 18ct yellow gold, designed as a cheetah cub, set throughout with round brilliant cut diamonds and accented by green enamel spots, the eyes set with round cut emeralds, the diamonds totalling

Estimate £7,000 - £9,000

AN ANTIQUE PEARL AND DIAMOND BAR BROOCH comprising a row of pearls within a border of old cut diamonds, the diamonds totalling 3.0-3.5 carats, no assay marks, 7.8cm, 14.6g. 

Estimate £1,800 - £2,200

AN ANTIQUE DIAMOND HORSESHOE BROOCH designed as a stylised horseshoe, set throughout with old cut diamonds, the diamonds totalling 3.0-3.5 carats, no assay marks, 3.5cm, 9.8g. 

Estimate £2,000 - £3,000

AN ANTIQUE DIAMOND SNOWFLAKE BROOCH in yellow gold and silver, designed as a snowflake set with old cut diamonds totalling 3.5-4.0 carats, no assay marks, 3.0cm, 6.9g. 

Estimate £2,500 - £3,500

AN ANTIQUE NATURAL SALTWATER PEARL AND DIAMOND FLOWER BROOCH / PENDANT in yellow gold and silver, designed as a flower set to the centre with a pearl of 7.5mm, the petals set throughout with old cut diamonds all totalling 2.5-3.0 carats, no assay mar

Estimate £2,000 - £3,000

A DIAMOND, EMERALD AN ENAMEL CHEETAH BROOCH designed as a cheetah decorated throughout with black enamel spots, the eyes set with round cut emeralds, the collar set with round brilliant cut diamonds, stamped 14CT, 5.6cm, 12.4g.

Estimate £1,500 - £2,500

NO RESERVE - AN EMERALD, AQUAMARINE, OPAL AND DIAMOND BUTTERFLY BROOCH / PENDANT designed as a butterfly set with a row of oval, round and pear shaped cabochon opals, the wings set with pear shaped faceted aquamarines accented by cabochon emeralds an

Estimate £150 - £250

AN ANTIQUE DIAMOND AND ENAMEL STARBURST BROOCH designed as a starburst set with old and rose cut diamonds, within a border of blue enamel, no assay marks 3.7cm, 9.7g. 

Estimate £800 - £1,200

AN ANTIQUE VICTORIAN GARNET AND CHRYSOBERYL BROOCH in yellow gold, the scrolling brooch set with oval, cushion and pear cut garnets accented by cushion and pear cut chrysoberyl, suspending a pear shaped cabochon garnet drop, no assay marks, 7.0cm, 15

Estimate £1,000 - £1,500

AN ANTIQUE DIAMOND STAR BROOCH designed as an eight rayed star, set throughout with rose cut diamonds, no assay marks, 2.0cm, 4.1g. 

Estimate £1,000 - £1,500

AN ANTIQUE NATURAL SALTWATER PEARL AND DIAMOND CLOVER BROOCH in yellow gold and silver, designed as a clover set with an old cut diamond and three pearls of 7.0mm, 7.5mm and 7.7mm, accented by a row of old and rose cut diamonds, no assay marks, 3.1cm

Estimate £800 - £1,200

A FINE ART DECO DIAMOND PLAQUE BROOCH the pierced geometric brooch set with a principal transitional cut diamond of approximately 2.30 carats, accented by further transitional, old and single cut diamonds, the diamonds totalling 11.0-12.0 carats, no

Estimate £10,000 - £15,000

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 IMPERIAL TOPAZ AND NATURAL SALTWATER PEARL BROOCH in yellow gold, set with an oval cut topaz of 4.51 carats in a triple cluster of pearls, no assay marks, 3.0cm, 10.0g. Accompanied by a gemmological report stating that the topaz is natural

Estimate £1,500 - £2,500

AN ANTIQUE VICTORIAN GARNET MOURNING LOCKET BROOCH / PENDANT in yellow gold, the circular brooch / pendant set with a round cabochon garnet in a rope work border, accented by studs, with a glass locket to the reverse, no assay marks, 3.5cm, 13.6g. 

Estimate £600 - £800

A DIAMOND FLORAL SPRAY BROOCH designed as a floral spray set throughout with old and single cut diamonds, the diamonds totalling 2.5-3.0 carats, no assay marks, 5.6cm, 17.3g. 

Estimate £2,500 - £3,500

PERY ET FILS FOR VAN CLEEF & ARPELS, A VINTAGE CORAL, DIAMOND AND ENAMEL JESTER CLIP BROOCH designed as a jester set with round brilliant and single cut diamonds, an articulated coral bead suspended from the cap, the articulated collar and twisted ba

Estimate £8,000 - £12,000

AN ANTIQUE SAPPHIRE AND DIAMOND BAR BROOCH set with an old European cut diamond of approximately 0.49 carats, accented by rows of single cut diamonds and calibre cut sapphires, no assay marks, 6.2cm, 6.1g. 

Estimate £1,200 - £1,600

AN ANTIQUE DIAMOND, PEARL AND ENAMEL SWEETHEART BROOCH in yellow gold and silver, the brooch decorated with green guilloche enamel and a border of white enamel, with an applied interlocking heart motif set with rose cut diamonds, accented by a border

Estimate £800 - £1,200

AN ART NOUVEAU DIAMOND BROOCH / PENDANT the scrolling brooch / pendant set with old cut diamonds, suspending diamond set drops, the diamonds all totalling 3.2-3.5 carats, no assay marks, 5.2cm, 7.5g. 

Estimate £3,000 - £5,000

AN ANTIQUE AMETHYST AND DIAMOND BROOCH set with a cushion cut amethyst in a scrolling border set with rose cut diamonds, suspending a detachable drop set with a facetted amethyst and further diamonds, 7.0cm, 31.5g. 

Estimate £3,000 - £5,000

AN ANTIQUE VICTORIAN EMERALD AND DIAMOND CLOVER BROOCH in yellow gold and silver, set with an old cut diamond and pear shaped cabochon emeralds, accented by rose cut diamonds, no assay marks, 3.8cm, 10.3g.

Estimate £4,000 - £6,000

AN ANTIQUE AGATE CAMEO BROOCH in yellow gold, set with an oval agate cameo carved to depict the bust of a classical woman, suspending three articulated gold drops, no assay marks, 8.3cm, 32.8g.

Estimate £1,500 - £2,500

AN AQUAMARINE, SAPPHIRE, SPINEL AND DIAMOND BUTTERFLY BROOCH / PENDANT designed as a woman with butterfly wings, the wings set with calibre cut aquamarines, French cut sapphires, old cut diamonds and round cut spinels, suspending a pear cut aquamarin

Estimate £1,200 - £1,600

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 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 DIAMOND FLOWER BROOCH in yellow gold and silver, designed as an openwork flower with heart shaped petals, set with old and rose cut diamonds all totalling 3.0-3.2 carats, no assay marks, 3.0cm, 11.0g. 

Estimate £2,500 - £3,500

AN ANTIQUE TURQUOISE BOW BROOCH designed as a stylised bow set with round cabochon turquoise, suspending a drop of similar design, glass covered locket panel to the reverse, no assay marks, 7.1cm, 18.3g. 

Estimate £800 - £1,200

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

AN ANTIQUE PINK SAPPHIRE AND DIAMOND INSECT BROOCH in yellow gold and silver, designed as a winged insect, the body set with an old cut diamond and a pear cut pink sapphire of approximately 0.82 carats, the wings set with old cut diamonds, the diamon

Estimate £1,200 - £1,600

AN ANTIQUE AUSTRIAN BUTTERFLY WING, DIAMOND AND SAPPHIRE BROOCH in 14ct yellow gold and silver, designed as a butterfly, the wings set with butterfly wings beneath glass locket panels, the body set with old cut diamonds, the eyes set with round cut s

Estimate £1,800 - £2,200

A NATURAL SALTWATER PEARL AND DIAMOND PENDANT suspending a natural pearl of approximately 10.0mm in an openwork frame set with old and rose cut diamonds, the bail set with further diamonds, no assay marks, 4.1cm, 5.4g. 

Estimate £1,500 - £2,500

AN ANTIQUE RUBY AND DIAMOND GIARDINETTO BROOCH in yellow gold and silver, designed as a basket of flowers, set with rose cut diamonds and round cut rubies, inscribed 1649, no assay marks, 3.8cm, 9.8g.

Estimate £2,000 - £3,000

NO RESERVE - AN OPAL, SAPPHIRE, MOONSTONE, EMERALD AND DIAMOND INSECT BROOCH / PENDANT designed as an insect, the body set with cabochon opals accented by rose cut diamonds, the wings set with oval cabochon moonstones accented by cabochon and calibre

Estimate £100 - £150

A MOTHER OF PEARL, DIAMOND, PEARL AND DIAMOND BROOCH designed as a stork holding a basket of pearls in its beak, set with round brilliant cut diamonds, carved mother of pearl and a round cut ruby eye, stamped 750, 4.5cm, 18.2g. 

Estimate £1,000 - £1,500

AN ANTIQUE GARNET AND DIAMOND BOW BROOCH in yellow gold, designed as a bow brooch engraved with foliate motifs, set with a cabochon garnet with applied old and rose cut diamonds, suspending a cabochon garnet drop, no assay marks, 6.3cm, 16.7g. 

Estimate £1,500 - £2,500

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 £1,500 - £2,500