ALAN MARTIN GARD, A MODERNIST DIAMOND BROOCH in 18ct yellow gold, in abstract foliate design, accented by single cut diamonds, AMG maker's mark, no assay marks, 5.8cm, 16.5g. 

Estimate £800 - £1,200

AN ANTIQUE OUROBOROS MOURNING BROOCH set with hairwork beneath a glass panel, the border designed as a snake biting it's own tail, no assay marks, 2.1cm, 3.6g. 

Estimate £300 - £500

AN ANTIQUE DIAMOND CRESCENT MOON BROOCH in yellow gold and silver, designed as a crescent moon set with rose cut diamonds, no assay marks, 1.8cm, 2.7g. 

Estimate £300 - £500

A DIAMOND ARROW JABOT PIN designed as an arrow, the head and feathers set with round cut diamonds, no assay marks, 6.6cm, 4.5g. 

Estimate £400 - £600

A GARNET CLUSTER BROOCH set with a cluster of round cabochon garnets, no assay marks, 4.2cm, 15.8g.

Estimate £400 - £600

AN ANTIQUE PEARL AND ENAMEL BROOCH / PENDANT in yellow gold, comprising a flower motif set with a pearl and decorated with pink and green enamel, the openwork body decorated with black and white dotted enamel and teal enamel leaves, accented by furth

Estimate £600 - £800

AN OPAL AUSTRALIA BROOCH designed as the outline of Australia, set to the centre with a fancy shaped boulder opal representing the site of Ayres Rock, accented by oval cabochon opals representing Sydney and other major cities, stamped 18K, 8.5cm, 17.

Estimate £1,000 - £1,500

AN ANTIQUE SAPPHIRE AND DIAMOND CRESCENT MOON BROOCH in yellow gold, designed as a crescent moon, set with oval cut sapphires accented by old cut diamonds, the sapphires totalling 1.3-1.5 carats, no assay marks, 5.1cm, 3.0g. 

Estimate £800 - £1,200

A NATURAL SALTWATER PEARL, EMERALD AND DIAMOND BROOCH in yellow gold and silver, set with a pear shaped cabochon emerald of approximately 12.18 carats, in a cluster of pearls, accented by old cut diamonds, no assay marks, 3.8cm, 15.1g. With a gemmolo

Estimate £3,000 - £5,000

AN ANTIQUE VICTORIAN AQUAMARINE BROOCH in yellow gold, set with an oval cut aquamarine of approximately 11.43 carats in a stylised segmented gold border, suspending swag chains and a pear cut aquamarine drop of approximately 6.44 carats, no assay mar

Estimate £1,500 - £2,500

AN ANTIQUE SAPPHIRE AND DIAMOND BROOCH, EARLY 20TH CENTURY the circular brooch comprising circular motifs set with marquise cut sapphires and old cut diamonds, no assay marks, 2.5cm, 3.1g. 

Estimate £400 - £600

AN ANTIQUE PINK SAPPHIRE AND DIAMOND BROOCH, EARLY 20TH CENTURY the openwork brooch set to the centre with a cushion cut pink sapphire of approximately 0.96 carats, accented by rose cut diamonds, no assay marks, 3.3cm, 4.3g. 

Estimate £800 - £1,200

A PEARL AND DIAMOND BROOCH in 18ct white gold, designed as a wreath set with pearls and round cut diamonds, full British hallmarks, 3.3cm, 7.4g. 

Estimate £300 - £500

AN AQUAMARINE AND DIAMOND FLORAL BROOCH / PENDANT set with a round brilliant cut diamond in a cluster of oval cut aquamarines, accented by a spray of further diamonds, stamped 14K, 3.2cm, 7.6g. 

Estimate £700 - £900

A JADEITE JADE AND DIAMOND BROOCH set with a jadeite jade plaque carved in foliate design, accented by single cut diamonds, no assay marks, 8.9cm, 10.6g. 

Estimate £600 - £800

AN ANTIQUE DIAMOND AND EMERALD BROOCH in yellow gold and silver, in foliate design and set with old and rose cut diamonds and cushion cut emeralds, no assay marks, 4.0cm, 9.4g. 

Estimate £1,000 - £1,500

AN ANTIQUE ROMAN PANTHEON MICROMOSAIC BROOCH in yellow gold, the oval brooch set with pieces of coloured glass to depict the Roman Pantheon, no assay marks, 4.5cm, 14.8g. 

Estimate £1,200 - £1,600

A PEARL BROOCH designed as a circle set with seed pearls, no assay marks, 2.4cm, 2.5g. 

Estimate £100 - £150

AN ANTIQUE GARNET, PEARL AND DIAMOND BROOCH set with a round cabochon garnet with an applied star motif set with a pearl and rose cut diamonds, within a twisted border, glass covered locket panel to the reverse with an antique coloured photograph of

Estimate £800 - £1,200

AN ANTIQUE GARNET AND PEARL BROOCH / PENDANT set with an oval cabochon garnet within a border of seed pearls, no assay marks, 2.0cm, 4.0g. 

Estimate £300 - £500

AN ENAMEL HORSE AND JOCKEY BROOCH in 9ct yellow gold, the brooch designed as a riding crop, with a horse and jockey, the jockey decorated with red and black enamel, A&W maker's mark, stamped 9CT, 6.3cm, 6.7g.

Estimate £300 - £500

AN ANTIQUE DIAMOND CLUSTER BAR BROOCH set with an old cut diamond in a cluster of further old cut diamonds, no assay marks, 4.5cm, 3.7g. 

Estimate £800 - £1,200

AN ANTIQUE ENAMEL HORSESHOE BROOCH designed as a horseshoe, set with an enamelled portrait of a dog, no assay marks, 1.8cm, 3.8g. 

Estimate £250 - £350

AN ANTIQUE DIAMOND, RUBY, SAPPHIRE, PEARL AND ENAMEL CRESCENT MOON AND WASP BROOCH in yellow gold, the wasp set with a pearl, cabochon sapphire, round and cushion cut rubies and rose cut diamonds, the wings decorated with blue enamel, the crescent mo

Estimate £2,000 - £3,000

AN ANTIQUE VICTORIAN SCOTTISH HARDSTONE AND CITRINE DIRK BROOCH designed as a dirk set with polished Scottish hardstones, accented by fancy cut citrines, no assay marks, 8.5cm, 10.9g. 

Estimate £600 - £800

AN ANTIQUE DIAMOND AND GARNET HORSE BROOCH in yellow gold and silver, designed as two horses set throughout with old cut diamonds, the eyes set with round cabochon garnets, no assay marks, 4.3cm, 4.8g. 

Estimate £800 - £1,200

AN ANTIQUE DIAMOND HORSESHOE BROOCH in yellow gold, designed as a horseshoe set with old cut diamonds, the diamonds totalling 0.8-0.9 carats, no assay marks, 2.4cm, 5.3g. 

Estimate £600 - £800

A JADEITE JADE PEA POD BROOCH comprising an openwork bar brooch suspending a jadeite jade plaque carved to depict pea pods, no assay marks, 8.3cm, 39.0g. 

Estimate £1,000 - £1,500

AN ANTIQUE VICTORIAN GARNET AND DIAMOND BROOCH / PENDANT in yellow gold, set with an oval cabochon garnet with an applied star motif set with old and rose cut diamonds, within a ropework border, glass covered locket panel to the reverse, no assay mar

Estimate £600 - £800

AN EMERALD, RUBY, SAPPHIRE AND DIAMOND SPRAY BROOCH in gold plate, designed as a floral spray tied with a bow, set throughout with cabochon and round cut emeralds, cabochon and round cut rubies, cabochon sapphires and round and rose cut diamonds, the

Estimate £6,000 - £8,000

AN ANTIQUE TIGER'S EYE, PEARL, DIAMOND AND RUBY INSECT BROOCH in yellow gold and silver, designed as a winged insect set with an oval cabochon tiger's eye and a pearl, the wings set with rose cut diamonds, the eyes set with round cabochon rubies, no

Estimate £500 - £700

AN ANTIQUE DIAMOND AND PASTE FOX AND RIDING CROP BROOCH designed as a riding crop with a fox head, the fox head set with rose cut diamonds, the eyes set with cabochon red paste stones, no assay marks, 5.4cm, 5.0g. 

Estimate £400 - £600

AN ANTIQUE GARNET TASSEL BROOCH in 15ct yellow gold, set with a round cabochon garnet in a meander style border decorated with blue enamel, suspending an articulated tassel, stamped 15CT, 8.7cm, 27.0g.

Estimate £1,500 - £2,500

AN ANTIQUE VICTORIAN GARNET AND DIAMOND STAR BROOCH in yellow gold, comprising a carved cabochon garnet with an applied star motif set with old and rose cut diamonds, within a stylised twisted border, glass covered locket panel to the reverse contain

Estimate £500 - £700

AN ANTIQUE DIAMOND HORSESHOE BROOCH in yellow gold and silver, designed as a horn with a horseshoe set with old cut diamonds, no assay marks, 3.6cm, 3.7g. 

Estimate £300 - £500

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 DIAMOND AND ENAMEL BROOCH in yellow gold and silver, the circular brooch set with a cluster of old cut diamonds, accented by borders of red, white and blue enamel, framed by a border of rose cut diamonds and accented by four further old cu

Estimate £2,000 - £3,000

A COLLECTION OF BROOCHES comprising a pearl circle brooch, stamped 585, 2.2cm, 3.4g, a diamond and sapphire bar brooch, set with rose cut diamonds and rectangular step cut sapphires, marked indistinctly, 4.2cm, 3.0g. 

Estimate £300 - £500

A FINE ANTIQUE ROCK CRYSTAL, DIAMOND, PEARL AND ENAMEL SWEETHEART BROOCH in yellow gold, set with a polished rock crystal, with an applied sweetheart motif set with rose cut diamonds, in a border of red and white enamel accented by pearls, no assay m

Estimate £800 - £1,200

AN ANTIQUE ENAMEL FEDE BROOCH in yellow gold, designed as two clasped hands relieved in blue enamel, no assay marks, 3.2cm, 12.2g. 

Estimate £1,200 - £1,600

AN ANTIQUE DIAMOND BAR BROOCH comprising a row of old European cut diamonds accented by rose cut diamonds, the diamonds totalling 0.7-0.8 carats, no assay marks, 6.6cm, 4.7g. 

Estimate £600 - £800