A VINTAGE DIAMOND BAR BROOCH in 18ct white gold and platinum, set with four graduating old mine cut diamonds totalling 2.0-2.2 carats, stamped 18CT PLAT, 6.4cm, 5.1g.

Estimate £2,500 - £3,500

AN ANTIQUE DIAMOND FOX BAR BROOCH in 9ct yellow gold, stylised as a fox's head, the eyes set with old cut diamonds, stamped 9CT, 3.7cm, 3.4g. 

Estimate £300 - £500

AN ANTIQUE VICTORIAN DIAMOND FLOWER BROOCH in yellow gold and silver, set throughout with old cut diamonds, the central flower set en tremblant, the diamonds all totalling 2.5-3.0 carats, no assay marks, 4.6cm, 14.0g. 

Estimate £3,500 - £4,500

AN ANTIQUE SAPPHIRE AND DIAMOND SWORD PIN, 19TH CENTURY in silver and yellow gold, designed as a sword, the hilt set with old cut diamonds and a sapphire, the pommel set with a pearl, no assay marks, 13.2cm, 10.4g. 

Estimate £1,500 - £2,500

AN ANTIQUE AGATE CAMEO, ENAMEL AND DIAMOND BROOCH, 19TH CENTURY in 18ct yellow gold, set with carved banded agate cameo depicting a pharaoh in a border of old mine cut diamonds totalling 1.3-1.5 carats, accented by black enamel detailing, French impo

Estimate £1,200 - £1,600

AN EGYPTIAN REVIVAL AMETHYST SCARAB BAR BROOCH in 18ct yellow gold, set with a carved amethyst scarab beetle, accented by six lotus motifs, French assay marks, 6.1cm, 11.1g. 

Estimate £400 - £600

AN ANTIQUE RUBY, DIAMOND AND PEARL HORSESHOE BAR BROOCH, 19TH CENTURY in silver and yellow gold, designed as three interlocking horseshoes, two set with cushion cut rubies and one set with rose cut diamonds, accented by pearls, no assay marks, 4.7cm,

Estimate £800 - £1,200

AN ANTIQUE GEORGIAN CHRYSOLITE BROOCH in silver, set with a cluster of chrysolites in an openwork design, no assay marks, 2.7cm, 10.2g. 

Estimate £700 - £900

A VINTAGE FRENCH RUBY AND DIAMOND TIMEPIECE BROOCH in 18ct yellow gold, designed as a lady holding a parasol standing beneath a lamp post, the lampost set with a round clock face accented by single cut diamonds, the figure of a lady set with further

Estimate £2,500 - £3,500

A VINTAGE DIAMOND BROOCH in platinum and 18ct white gold, designed as a stylised leaf set with baguette cut and round cut diamonds totalling 4.0-4.5 carats, signed Fontana, no assay marks, 7.5cm, 27.4g.

Estimate £3,000 - £5,000

A VINTAGE FRENCH DIAMOND BAR BROOCH in 18ct white and yellow gold, set with a row of five old cut diamonds, the diamonds all totalling 1.0-1.5 carats, French assay marks, 4.2cm, 3.4g. 

Estimate £1,000 - £1,500

AN ANTIQUE DIAMOND BAR BROOCH in yellow gold, set with a cluster of old cut diamonds, accented on each side by a row of further old cut diamonds, no assay marks, 4.8cm, 3.9g. 

Estimate £800 - £1,200

AN FRENCH ANTIQUE ART DECO DIAMOND AND ONYX BAR BROOCH in platinum, set with a row of eleven old cut diamonds, the principal diamond of approximately 1.20 carats set within an octagonal onyx surround, accented by further polished onyx and old and ros

Estimate £5,000 - £7,000

AN ART DECO DIAMOND BROOCH in geometric form set with a square step cut diamond and old cut diamonds, no assay marks, 5.4cm, 5.7g.

Estimate £1,000 - £1,500

A VINTAGE CITRINE BROOCH in yellow gold, set with an oval cut citrine of approximately 28.40 carats in stylised beaded border, no assay marks, 3.0cm, 9.8g.

Estimate £200 - £300

A VINTAGE DIAMOND SPRAY BROOCH in 18ct yellow gold and platinum, designed as an abstract floral bouquet in textured gold accented by old cut diamonds, French assay marks, 6.8cm, 22.3g. 

Estimate £1,500 - £2,500

AN ANTIQUE OPAL AND DIAMOND BROOCH / PENDANT in yellow gold, set with an oval cabochon opal of 23.0mm accented by trios of old cut diamonds, no assay marks, 4.1cm, 6.1g. 

Estimate £2,500 - £3,500

AN ANTIQUE VICTORIAN COCKEREL STICK PIN in yellow gold and silver, the head of the pin designed as a cockerel set with old cut diamonds and a cabochon cut ruby to the eye, no assay marks, 2.3cm, 2.7g. 

Estimate £300 - £500

AN ART DECO DIAMOND BROOCH in geometric form, set with five principal old cut diamonds, accented by further old cut diamonds, the diamonds all totalling 1.5-2.0 carats, no assay marks, 5.4cm, 11.1g. 

Estimate £1,500 - £2,500

AN ANTIQUE PEARL AND DIAMOND BAR BROOCH, EARLY 20TH CENTURY in platinum, comprising a row of pearls accented by rose cut diamond set bows, suspending a larger pearl drop of 16.0mm, French import marks, 4.8cm, 5.9g. 

Estimate £2,500 - £3,500

AN ANTIQUE CORAL BROOCH in silver, set with pieces of carved coral, no assay marks, 3.0cm, 5.6g.

Estimate £200 - £300

AN ANTIQUE OPAL AND DIAMOND BAR BROOCH in 18ct gold, set with a central oval cabochon opal between two old cut diamonds, with further rose cut diamonds to the bar, French import marks, 3.8cm, 4.8g. 

Estimate £500 - £700

AN ANTIQUE VICTORIAN DIAMOND BROOCH in 15ct yellow gold and silver, the stylised brooch set throughout with old cut diamonds, the diamonds all totalling 4.3-4.6 carats, 5.1cm, 10.9g. 

Estimate £4,000 - £6,000

CHANEL, A VINTAGE BROOCH designed as three interlocking CC motifs, signed Chanel, 5.2cm, 26.4g. 

Estimate £600 - £800

AN ANTIQUE DIAMOND AND ENAMEL FLOWER BROOCH in yellow gold, with a central flower motif decorated with yellow and red enamel accented by old and rose cut diamonds, in a frame of yellow gold accented by a rose cut diamond, no assay marks, 3.0cm, 9.8g.

Estimate £500 - £700

AN ANTIQUE RUBY AND DIAMOND FLOWER BROOCH in yellow gold and silver, designed as a textured branch suspending a detachable floral wreath set with rose cut diamonds and rubies, no assay mark, inventory number, 4.1cm, 7.9g. 

Estimate £600 - £800

A FRENCH ART DECO DIAMOND BAR BROOCH in 18ct yellow and white gold, set with a row of old cut diamonds, French assay marks, 7.2cm, 5.9g. 

Estimate £600 - £800

AN ANTIQUE DIAMOND AND CARNELIAN CAMEO BROOCH, 19TH CENTURY in yellow gold, set with a carnelian cameo carved to depict the bust of a woman, in a border of rose cut diamonds with bow detailing, no assay marks, 5.4cm, 21.0g.

Estimate £800 - £1,200

AN ANTIQUE SWISS ENAMEL BROOCH, CIRCA 1840 in yellow gold, of oval outline, set with an enamelled miniature of a man blowing a horn, with a reclining woman and goat, with a backdrop of mountains and a chalet, the setting with a scalloped border, no a

Estimate £600 - £800

AN ANTIQUE OTTER STOCK PIN in yellow gold, designed as the head of an otter with rose cut diamond set eyes, no assay marks, 4.4cm, 4.3g. 

Estimate £250 - £350

A VINTAGE PEARL AND DIAMOND BOW BROOCH in platinum, designed as a ribbon tied into a bow set with a pearl of 14.1mm, accented by round and baguette cut diamonds, stamped PT900, 5.0cm, 20.7g. 

Estimate £1,200 - £1,600

AN ANTIQUE DIAMOND CORONET BROOCH, EARLY 20TH CENTURY designed as a crown, set with round cut diamonds, no assay marks, 3.8cm, 6.6g.

Estimate £1,500 - £2,500

CHANEL, A VINTAGE GEMSET CC BROOCH comprising an interlocking CC motif accented by four cushion cut pink rhinestones and four round cut black gemstones, signed Chanel, 3.9cm, 22.8g. 

Estimate £400 - £600