AN ART DECO ONYX AND DIAMOND ARROW JABOT PIN BROOCH in white gold, the quiver set with a row of rectangular step cut onyx, accented by rose cut diamonds, no assay marks, 5.8cm, 3.4g. 

Estimate £500 - £700

OSCAR HEYMAN & BROTHERS, A DIAMOND AND ENAMEL LADYBIRD BROOCH in 18ct yellow gold, designed as a ladybird relieved in black and red enamel, accented by heart and round brilliant cut diamonds, maker's mark, stamped 18K, 2.0cm, 8.4g. 

Estimate £1,000 - £1,500

AN ANTIQUE SAPPHIRE, DIAMOND AND PEARL BROOCH in 18ct yellow gold, the navette shaped brooch set with a cushion cut pink sapphire accented by pearls and rose cut diamonds, in a frame of calibre cut sapphires and further rose cut diamonds, stamped 18C

Estimate £500 - £700

AN ANTIQUE DIAMOND, ENAMEL AND PEARL TIMEPIECE BROOCH in 18ct yellow gold, the brooch set with rose cut diamonds and a pearl, accented by lilac enamel, suspending a detachable watch pendant set with further rose cut diamonds and relieved in lilac ena

Estimate £2,000 - £3,000

AN ANTIQUE CORAL BROOCH the openwork brooch set with three coral cameos carved to depict the bust of a woman and two rams heads, suspending coral drops carved to depict roses, a swag chain set with further coral roses and a coral crop carved to depic

Estimate £2,000 - £3,000

AN ANTIQUE SAPPHIRE AND DIAMOND JABOT PIN BROOCH designed as a stylised feather set with an oval cut sapphire accented by rose cut diamonds, no assay marks, 6.4cm, 4.2g. 

Estimate £800 - £1,200

A PEARL AND DIAMOND BAR BROOCH the tapering brooch set with alternating pearls and round brilliant cut diamonds, stamped 750, 9.0cm, 11.5g. 

Estimate £500 - £700

A DIAMOND BUTTERFLY BROOCH designed as a butterfly pave set with round brilliant cut diamonds, the head set with a round brilliant cut diamond, stamped K18WG, 4.1cm, 10.4g. 

Estimate £500 - £700

A MUGHAL CARVED EMERALD AND DIAMOND CLIP BROOCH set with a Mughal carved emerald accented by old cut diamonds, suspending a polished emerald drop accented by further old cut diamonds, the emeralds totalling 8.0-8.5 carats, the diamonds all totalling

Estimate £6,000 - £8,000

A DIAMOND DANCER BROOCH / PENDANT designed as a dancer with an openwork skirt, the skirt set with single cut diamonds, no assay marks, 5.5cm, 18.7g. 

Estimate £1,200 - £1,600

AN ANTIQUE PERIDOT AND DIAMOND BROOCH set with a fancy cut peridot of approximately 4.30 carats accented by old and rose cut diamonds, no assay marks, 3.6cm, 6.0g. 

Estimate £800 - £1,200

AN AMETHYST, DIAMOND AND PLIQUE A JOUR BOUQUET BROOCH comprising a cluster of carved amethyst flowers set with single cut diamonds, the leaves decorated with green plique a jour enamel, stamped 750, 4.9cm, 23.4g.

Estimate £1,500 - £2,500

AN ANTIQUE RUBY AND DIAMOND BROOCH in yellow gold, designed as two interlocking navette motifs set with old cut diamonds and round cut rubies, inscribed '27.4.1905', no assay marks, 2.3cm, 2.3g. 

Estimate £400 - £600

AN ANTIQUE DIAMOND BROOCH in yellow gold and silver, the scrolling brooch set throughout with old and rose cut diamonds, no assay marks, 5.6cm, 10.3g. 

Estimate £800 - £1,200

A PEARL DAISY BROOCH comprising a domed centre, the petals set with pearls, no assay marks, 4.0cm, 16.9g.

Estimate £600 - £800

AN ANTIQUE PORTRAIT MINIATURE BROOCH set with a portrait miniature depicting a Georgian gentleman, no assay marks, 2.7cm, 5.8g. 

Estimate £200 - £300

AN ANTIQUE VICTORIAN ENAMEL, PEARL, AND DIAMOND PENDANT / BROOCH in yellow gold, the scrolling brooch relieved in green enamel and set with rose cut diamonds, accented by pearls and old cut diamonds, with detachable brooch fitting, no assay marks, 2.

Estimate £800 - £1,200

AN ANTIQUE DOVES OF PLINY MICROMOSAIC BROOCH in yellow gold, the oval brooch set inlaid with multicoloured pieces of glass depicting the Doves of Pliny, the reverse inlaid with multicoloured pieces of glass depicting the Roman Forum, no assay marks,

Estimate £2,000 - £3,000

A VINTAGE DIAMOND AND PEARL BIRD BROOCH in yellow, white and rose gold, designed as an abstract bird, the body set with a pearl of 5.25mm with a round cut diamond eye, the feathers in yellow, white and rose gold accented by round brilliant and single

Estimate £1,500 - £2,500

A DIAMOND AND PEARL BROOCH in platinum and white gold, set with a pearl of 12.5mm, in concentric borders of round cut diamonds and further pearls, no assay marks, 3.0cm, 11.6g. 

Estimate £1,500 - £2,500

A RUBY AND DIAMOND SPRAY BROOCH designed as a stylised spray set with round brilliant and baguette cut diamonds accented by round and oval cut rubies, no assay marks, 4.4cm, 11.7g. 

Estimate £1,500 - £2,500

A RUBY, EMERALD, SAPPHIRE AND DIAMOND BUTTERFLY BROOCH designed as a butterfly set with round cut rubies, emeralds, sapphires and round brilliant cut diamonds, the diamonds all totalling 1.3-1.5 carats, stamped 750, 3.8cm, 11.9g.

Estimate £1,200 - £1,600

AN ANTIQUE DIAMOND RIDING CROP BROOCH designed as a horseshoe and riding crop, the horseshoe set with old cut diamonds, no assay marks, 4.5cm, 5.3g. 

Estimate £300 - £500

AN ANTIQUE DIAMOND EN TREMBLANT FLORAL SPRAY BROOCH in yellow gold and silver, designed as a floral spray set throughout with old and rose cut diamonds, the central flower set en tremblant, the diamonds all totalling 3.0-3.5 carats, no assay marks, 6

Estimate £2,000 - £3,000

A VINTAGE RUBY STAR BROOCH / PENDANT in 9ct yellow gold, designed as a twelve rayed star set throughout with round cut rubies, full British hallmarks for London 1976, 3.8cm, 8.1g.

Estimate £500 - £700

AN ANTIQUE DIAMOND BROOCH / PENDANT in yellow gold and silver, the circular brooch set throughout with old and rose cut diamonds, the diamonds all totalling 3.5-4.0 carats, no assay marks, 2.5cm, 6.2g. 

Estimate £3,000 - £5,000

AN ANTIQUE DIAMOND FLOWER BROOCH / PENDANT in yellow gold and silver, designed as a flower set throughout with old and rose cut diamonds, the diamonds all totalling 3.5-4.0 carats, no assay marks, 2.9cm, 12.5g. 

Estimate £2,500 - £3,500

A RUBY AND DIAMOND BAR BROOCH in white gold, set with a row of oval cut rubies, accented by pairs of old cut diamonds, the rubies all totalling 3.1-3.3 carats, no assay marks, 5.4cm, 5.2g.

Estimate £500 - £700

AN ANTIQUE OPAL AND DIAMOND INSECT BROOCH in yellow gold, the body of the insect set with round cabochon cut opals, the wings set with rose cut diamonds, no assay marks, 1.9cm, 4.0g.

Estimate £600 - £800

A VINTAGE GEMSET VIOLIN BROOCH / PENDANT in 9ct yellow gold, designed as a textured violin, the fingerboard set with a row of round cut sapphires, the chin rest accented by a trio of round cut diamonds, stamped 375, 4.0cm, 5.2g.

Estimate £300 - £500

AN ANTIQUE SAPPHIRE, DIAMOND AND PEARL FLOWER BROOCH in yellow gold and silver, designed as a flower set with a pearl, the petals set with oval cut sapphires and old and rose cut diamonds, terminating at each end with a round cut sapphire, no assay m

Estimate £1,000 - £1,500

AN ANTIQUE DIAMOND, ENAMEL AND PEARL BROOCH in yellow gold and silver, the domed brooch comprising a star motif set with old and rose cut diamonds over a ground of blue guilloche enamel, accented by a border of old cut diamonds, suspending a tassel o

Estimate £2,500 - £3,500

AN ANTIQUE PEARL AND ENAMEL MOURNING BROOCH the scrolling brooch set with two glass covered locket compartments in a border of pearls, accented by a belt buckle motif relieved in black enamel, inscribed 'Helen Rutherford Born May 13th 1844 Died Oct 5

Estimate £600 - £800

AN ANTIQUE DIAMOND EN TREMBLANT FLORAL SPRAY BROOCH in yellow gold and silver, designed as a floral spray set throughout with old, rose and single cut diamonds, the two flower heads set en tremblant, no assay marks, 6.3cm, 17.7g.

Estimate £2,000 - £3,000

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