PAOLO PIOVAN, A RUBY, DIAMOND AND ONYX MOTORBIKE BROOCH the body set with calibre cut rubies and sapphires, round cut diamonds and polished pieces of onyx, signed P. Piovan, Italian assay marks, 4.7cm, 14.1g.

Estimate £1,800 - £2,200

AN ANTIQUE DIAMOND BROOCH / PENDANT in yellow gold and silver, the foliate style brooch set with a cluster of old cut diamonds, accented by further old and rose cut diamonds, the diamonds all totalling 2.4-2.6 carats, no assay marks, 3.5cm, 9.8g. 

Estimate £800 - £1,200

AN ANTIQUE PERIDOT, DIAMOND AND PEARL BROOCH / PENDANT in yellow gold and silver, set with an octagonal step cut peridot in a border of old cut diamonds and pearls, no assay marks, 2.5cm, 6.6g. 

Estimate £2,500 - £3,500

AN ANTIQUE RUBY, EMERALD, SAPPHIRE AND DIAMOND FLORAL SPRAY BROOCH in yellow gold, comprising a bunch of flowers including a daisy, thistle, lily of the valley and a sheaf of wheat tied with a ribbon, set with calibre cut rubies, emeralds, sapphires

Estimate £2,000 - £3,000

AN ANTIQUE ENAMEL FISH BROOCH in 9ct yellow gold and silver, designed as a rainbow trout decorated in varicoloured enamel, stamped SILVER 9CT, 4.0cm, 3.5g. 

Estimate £300 - £500

AN ONYX AND DIAMOND BOW BROOCH designed as a bow set with calibre cut onyx accented by rose cut diamonds, no assay marks, 6.3cm, 6.6g. 

Estimate £1,200 - £1,600

A VINTAGE DIAMOND SUNBURST BROOCH in white gold, the body set throughout with round brilliant and single cut diamonds, no assay marks, 3.4cm, 12.4g. 

Estimate £300 - £500

A MODERNIST DIAMOND BROOCH / PENDANT, 1970S in 18ct yellow gold, the textured body set with an old European cut diamond of approximately 1.85 carats in a surround of further old European cut diamonds, the diamonds all totalling 9.0-9.5 carats, no ass

Estimate £8,000 - £12,000

A DIAMOND FLOWER BROOCH designed as two flowers and three leaves pave set throughout with round brilliant cut diamonds, the diamonds totalling 18.0-19.0 carats, no assay marks, 5.4cm, 41.1g. 

Estimate £15,000 - £25,000

LALAOUNIS, A RUBY AND GOLD BROOCH / PENDANT in 22ct yellow gold, set with a round cabochon ruby on a circular domed body decorated with Etruscan style motifs, signed Lalaounis, stamped K22, 4.5cm, 31.8g. 

Estimate £1,200 - £1,600

AN ANTIQUE OPAL, DIAMOND AND RUBY BUTTERFLY BROOCH in yellow gold and silver, designed as a butterfly set with cabochon opals, rose cut diamonds and round and cabochon rubies, no assay marks, 4.5cm, 14.3g. 

Estimate £1,200 - £1,600

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 £800 - £1,200

AN ANTIQUE DIAMOND HEART BROOCH in yellow gold and silver, designed as an open heart pierced by a bar, set throughout with rose cut diamonds, no assay marks, 3.3cm, 2.2g. 

Estimate £500 - £700

AN ANTIQUE DIAMOND FLOWER BROOCH in yellow gold and silver, designed as a dog rose set with an old cut diamond of approximately 1.20 carats, accented throughout with old cut diamonds, the diamonds all totalling 9.0-10.0 carats, no assay marks, 6.5cm,

Estimate £6,000 - £8,000

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

AN ANTIQUE DIAMOND CRESCENT MOON BROOCH in yellow gold and silver, designed as a crescent moon set with a row of old cut diamonds, the diamonds all totalling 1.0-1.1 carats, no assay marks, 2.9cm, 4.7g.

Estimate £1,000 - £1,500

A FINE ART DECO DIAMOND BROOCH in platinum, the openwork oval shaped body set throughout with old cut diamonds, the three principal diamonds weighing approximately 0.50, 1.00, and 0.50 carats, the diamonds all totalling 7.0-8.0 carats, no assay marks

Estimate £8,000 - £12,000

AN ANTIQUE GARNET AND DIAMOND FLOWER BROOCH in yellow gold, set with a round cut garnet in a cluster of oval cut garnets, accented by rose cut diamonds, no assay marks, 2.0cm, 3.5g.

Estimate £500 - £700

VAN CLEEF & ARPELS, A VINTAGE JADEITE JADE, AMETHYST, CORAL AND DIAMOND BROOCH / PENDANT in 18ct yellow gold, designed as a carved jadeite jade plaque set to the centre with an oval cabochon amethyst, accented by four pear shaped cabochon corals to a

Estimate £12,000 - £16,000

AN EMERALD, RUBY AND DIAMOND BROOCH set with round cut emeralds, marquise cut rubies and round brilliant cut diamonds, suspending three articulated drops set with further round cut emeralds, marquise cut rubies and round brilliant cut diamonds, stamp

Estimate £1,000 - £1,500

A DIAMOND BROOCH in platinum and white gold, the pierced geometric brooch set to the centre with an old European cut diamond of approximately 0.65 carats, accented throughout with old and single cut diamonds, the diamonds all totalling 5.0-6.0 carats

Estimate £3,000 - £5,000

AN ANTIQUE DIAMOND BROOCH in yellow gold and silver, the openwork brooch in foliate design accented by a bow, set throughout with rose cut diamonds, no assay marks, 5.2cm, 9.2g.

Estimate £600 - £800

A FINE ANTIQUE DIAMOND FLOWER BROOCH in gold and silver, designed as the head of a flower, set throughout with old cut diamonds, the diamonds all totalling 4.4-4.8 carats, no assay marks, 2.8cm, 5.4g.

Estimate £2,000 - £3,000

AN ANTIQUE DIAMOND AND TURQUOISE SALAMANDER BROOCH in yellow gold and silver, designed as a salamander, the body set throughout with rose cut diamonds, the eyes set with cabochon turquoise, no assay marks, 6.1cm, 15.7g.

Estimate £1,500 - £2,500

A JADEITE JADE BROOCH set with an oval jadeite jade carved to depict 

Estimate £300 - £500

A PAIR OF DIAMOND FLOWER BROOCHES each designed as a stylised flower, set with an old cut diamond accented by single and baguette cut diamonds, no assay marks, 3.1cm, 13.1g. 

Estimate £1,500 - £2,500

AN AMETHYST AND DIAMOND BROOCH set with an octagonal step cut amethyst amethyst of approximately 53.95 carats, in a scrolling border set with round brilliant and marquise cut diamonds, no assay marks, 4.4cm, 30.5g. 

Estimate £3,500 - £5,500

A DIAMOND DOUBLE CLIP BROOCH in white gold and platinum, the openwork brooch set throughout with round brilliant and single cut diamonds, accented by baguette cut diamonds, the diamonds all totalling 8.0-9.0 carats, detachable from the frame to form

Estimate £5,000 - £7,000

AN ANTIQUE ETRUSCAN REVIVAL GARNET AND PEARL BROOCH in yellow gold, the oval pendant set with an oval cabochon garnet in a border of pearls, suspending a detachable drop set with a round cabochon garnet and pearls, accented by an articulated fringe,

Estimate £1,500 - £2,500

AN ANTIQUE DIAMOND FLOWER BROOCH in white gold, designed as a flower set with old cut diamonds, in a border of further old cut diamonds, the diamonds totalling 6.0-6.5 carats, no assay marks, 2.9cm, 6.4g.

Estimate £3,000 - £5,000

AN ANTIQUE HARDSTONE AND ENAMEL BROOCH in yellow gold, the circular brooch set with hardstone spelling 'ESTO FELIX' meaning 'BE HAPPY', relieved by pink enamel, no assay marks, 2.4cm, 6.3g. Accompanied by a fitted antique jewellery box. 

Estimate £600 - £800

AN ANTIQUE CONCH PEARL AND MULTIGEM FLORAL BOUQUET BROOCH in yellow gold, designed as a bouquet of flowers tied with a ribbon, set with two conch pearls, heart shaped cabochon garnets, round cabochon turquoise, rose cut diamonds and seed pearls, no a

Estimate £3,000 - £5,000

A DIAMOND LEAF BROOCH designed as a leaf shaped spray of round brilliant cut diamonds, surrounded by a detachable yellow gold frame, no assay marks, 6.3cm, 23.3g. 

Estimate £5,000 - £7,000

AN EMERALD, RUBY, SAPPHIRE AND DIAMOND PENDANT in 18ct yellow gold, the oval pendant in foliate design, set with round brilliant and baguette cut diamonds and marquise cut rubies, emeralds and sapphires, partial British hallmarks, stamped 18K 750, 5.

Estimate £800 - £1,200

A DIAMOND BROOCH designed as an open circle set with graduating round brilliant cut diamonds, accented by marquise cut diamonds and baguette cut diamonds, the diamonds all totalling 1.5-2.0 carats, no assay marks, 2.9cm, 7.4g. 

Estimate £1,500 - £2,500

A FINE EMERALD AND DIAMOND BROOCH in platinum and white gold, the geometric brooch set to the centre with a marquise cut diamond of approximately 0.53 carats, set throughout with round brilliant cut diamonds, accented by baguette cut diamonds and cal

Estimate £5,000 - £7,000

A DIAMOND SPRAY BROOCH in platinum, designed as an abstract floral spray set with round brilliant, marquise and baguette cut diamonds, the diamonds all totalling 6.0-6.5 carats, no assay marks, 4.4cm, 18.4g. 

Estimate £6,000 - £8,000

AN ANTIQUE VICTORIAN DIAMOND, RUBY AND PEARL MONKEY BAR BROOCH in 9ct yellow gold and silver, designed as a monkey perched on a bar suspending another monkey from a chain, the monkeys set with rose cut diamonds and round cut ruby and rose cut diamond

Estimate £1,000 - £1,500

AN ANTIQUE PIQUE TORTOISESHELL BROOCH the domed body inlaid with gold detailing, no assay marks, 4.1cm, 8.6g. 

Estimate £60 - £80

AN ANTIQUE DIAMOND BROOCH / PENDANT in yellow gold and silver, the foliate style brooch set throughout with old cut diamonds, the diamonds all totalling 2.8-3.0 carats, no assay marks, 4.1cm, 19.0g. 

Estimate £1,500 - £2,500

AN ANTIQUE PINK TOURMALINE AND DIAMOND BROOCH in yellow gold and silver, set with a cushion cut pink tourmaline of approximately 14.68 carats, in a foliate style border set with old and rose cut diamonds, the diamonds all totalling 1.1-1.3 carats, no

Estimate £3,000 - £5,000

TIFFANY & CO., A VINTAGE ENAMEL AND DIAMOND ROSE BROOCH / PENDANT in yellow gold, designed as a rose in bloom decorated throughout with white enamel, suspending an old cut diamond drop, signed Tiffany & Co., no assay marks, 3.5cm, 13.4g.

Estimate £2,000 - £3,000

AN ANTIQUE PEARL HORSESHOE BROOCH designed as a horseshoe set with two rows of pearls, no assay marks, 3.0cm, 7.9g. 

Estimate £600 - £800

A DIAMOND AND RUBY FLY BROOCH designed as a fly, the body set throughout with round brilliant cut diamonds, the eyes set with faceted rubies, no assay marks, 2.2cm, 6.4g. 

Estimate £1,500 - £2,500

A GEMSET PARROT BROOCH designed as a parrot perching on a pearl, the body set throughout with rose cut diamonds, the wings and tail set with sapphires, rubies, and emeralds, no assay marks, 5.1cm, 6.0g.

Estimate £2,000 - £3,000

A VINTAGE PEARL AND DIAMOND SPRAY BROOCH in yellow gold, designed as a spray set with a row of graduating pearls and round brilliant cut diamonds, no assay marks, 5.0cm, 13.1g. 

Estimate £800 - £1,200

A DIAMOND CLOVER BROOCH designed as a four leaf clover, set to the centre with an old cut fancy yellow diamond of approximately 0.80 carats, each leaf pave set with round brilliant cut diamonds, the stem set with baguette cut diamonds, the diamonds a

Estimate £5,000 - £7,000

A JADEITE JADE AND PEARL BAR BROOCH set with a jadeite jade plaque carved to depict foliage, accented by two seed pearls, stamped 18CT, 5.9cm, 6.2g. 

Estimate £300 - £500

AN ANTIQUE BOULDER OPAL LOBSTER BROOCH in 9ct yellow gold, set with two cabochon boulder opals, marked DWABD, stamped 9ct, 2.5cm, 3.3g. 

Estimate £200 - £300

A DIAMOND FLOWER BROOCH designed as a rose, the petals and leaves set with round brilliant cut diamonds, the diamonds all totalling 6.0-6.5 carats, stamped 18K, 5.9cm, 27.1g. 

Estimate £5,000 - £7,000

A DIAMOND AND RUBY PRAWN BROOCH designed as a prawn / shrimp set throughout with rose cut diamonds, the eye set with a cabochon ruby, no assay marks, 4.5cm, 8.0g.

Estimate £800 - £1,200

AN ANTIQUE DIAMOND SNOWFLAKE BROOCH / PENDANT later rhodium plated, set to the centre with an old cut diamond of approximately 0.50 carats, the openwork body accented throughout with old and rose cut diamonds, the diamonds all totalling 2.8-3.0 carat

Estimate £2,000 - £3,000

AN ANTIQUE DIAMOND AND SAPPHIRE BROOCH in silver and rose gold, designed as the initial A set with old cut diamonds, accented by round cut sapphires, no assay marks, 3.0cm, 5.1g.

Estimate £400 - £600

AN ANTIQUE DIAMOND FLORAL SPRAY BROOCH in yellow gold and silver, designed as a floral spray, set throughout with old and rose cut diamonds, the diamonds all totalling 0.8-1.0 carats, no assay marks, 4.8cm, 6.1g.

Estimate £400 - £600

A DIAMOND AND SAPPHIRE BROOCH in a stylised geometric design, set throughout with round brilliant cut diamonds, oval cut sapphires, and baguette cut sapphires, the diamonds totalling 6.5-7.0 carats, the sapphires totalling 6.5-7.0 carats, no assay ma

Estimate £4,000 - £6,000

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

AN ANTIQUE DIAMOND BROOCH in silver, the openwork brooch set throughout with old and rose cut diamonds, the diamonds all totalling 5.5-6.0 carats, no assay marks, 3.3cm, 9.8g. 

Estimate £3,000 - £5,000

AN ANTIQUE DIAMOND, PEARL AND ENAMEL BROOCH in 9ct yellow gold and silver, in circular form decorared with blue and white enamel, set with old cut diamonds in a frame of further old cut diamonds and pearls, no assay marks, 2.8cm, 6.6g.

Estimate £1,200 - £1,600

AN ANTIQUE TIGERS EYE, RUBY AND DIAMOND SPIDER BROOCH in 9ct yellow gold, set with a cabochon tiger's eye abdomen, ruby head and diamond body, the legs set throughout with rose cut diamonds, no assay marks, 3.5cm, 7.4g.

Estimate £1,200 - £1,600

A VINTAGE PERIDOT, EMERALD AND DIAMOND BROOCH in platinum, the square openwork brooch set with a octagonal step cut peridot of approximately 10.64 carats accented by single cut diamonds, in a frame of square step cut emeralds and old European cut dia

Estimate £2,000 - £3,000

A BIRD CAMEO BROOCH in yellow gold, set with a shell cameo carved to depict an Australian kookaburra bird, marked indistinctly, 5.9cm, 17.1g. 

Estimate £600 - £800

AN ANTIQUE DIAMOND AND ENAMEL BROOCH in yellow gold, the oval brooch decorated with blue and white enamel, with an applied garland motif set with rose cut diamonds, inscribed 'C & G June 9th 1898', no assay marks, 2.4cm, 4.4g.

Estimate £500 - £700

AN OPAL AND DIAMOND BROOCH / PENDANT the openwork body set with an old cut diamond in a cluster of heart shaped cabochon opals, accented throughout with further cabochon opals and old and rose cut diamonds, no assay marks, 2.8cm, 11.4g.

Estimate £800 - £1,200

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