AN ANTIQUE DIAMOND AND ENAMEL SHAMROCK BROOCH in yellow gold, designed as a pair of interlocking shamrocks decorated with red and green enamel respectively, each set with an old cut diamond, no assay marks, 3.4cm, 8.9g. 

Estimate £600 - £800

AN ANTIQUE GARNET AND DIAMOND CROSS BROOCH in yellow gold and silver, set with cushion and oval cut garnets accented by rows of rose cut diamonds, the diamonds all totalling 0.8-1.0 carats, no assay marks, 4.5cm, 10.7g. 

Estimate £2,000 - £3,000

A FRENCH DIAMOND BAR BROOCH comprising a row of old and round cut diamonds, the diamonds all totalling 0.8-1.0 carats, French assay marks, 8.0cm, 7.5g. 

Estimate £800 - £1,200

AN ANTIQUE FRENCH DIAMOND BROOCH in 18ct yellow gold and silver, the scrolling brooch set throughout with old and rose cut diamonds, French assay marks, 4.7cm, 7.6g. 

Estimate £1,000 - £1,500

AN ANTIQUE DIAMOND AND PEARL TASSEL BROOCH in yellow gold and silver, the brooch set throughout with old cut diamonds, suspending two tassel pendants set with rose cut diamonds, accented by two pearls, the diamonds all totalling 2.2-2.4 carats, no as

Estimate £3,000 - £5,000

A PAIR OF DIAMOND CLIP BROOCHES in white gold and platinum, the sheild shaped clips set throughout with round brilliant, baguette and single cut diamonds, no assay marks, 2.3cm, 9.7g. 

Estimate £2,500 - £3,500

A MOONSTONE AND PEARL MAN IN THE MOON BROOCH set with a cabochon moonstone carved to depict a man in the moon, in a border of pearls, no assay marks, 2.5cm, 11.0g. 

Estimate £1,500 - £2,500

AN ANTIQUE GARNET AND DIAMOND BROOCH the domed face set with cabochon garnet, accented by star motif set with old and rose cut diamonds, glass covered locket panel to the reverse with an antique photograph of a Victorian woman, no assay marks, 3.0cm,

Estimate £600 - £800

A RETRO AMETHYST AND DIAMOND BROOCH in yellow gold and platinum, designed as a stylised fleur dy lys, set with a rectangular step cut amethyst accented by single cut diamonds, A&W maker's mark, stamped 14CT & PT, pin stamped 9CT, 4.8cm, 13.0g. 

Estimate £600 - £800

IVAN BRITSYN, AN ANTIQUE RUSSIAN MOONSTONE, DIAMOND AND ENAMEL BROOCH / PENDANT in silver gilt, the circular brooch set with a round cabochon moonstone accented by rose cut diamonds, relieved in blue and white enamel, Ivan Britsyn maker's mark, Russi

Estimate £600 - £800

AN ANTIQUE DIAMOND BUCKLE BROOCH in yellow gold and silver, designed as a buckle set with old cut diamonds, no assay marks, 2.5cm, 3.4g. 

Estimate £400 - £600

A JADEITE JADE BRACELET in white gold, set with a row of five oval jadeite jade plaques carved to depict foliage, no assay marks, 19.0cm, 11.7g.

Estimate £250 - £350

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

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 £1,000 - £1,500

A VINTAGE SAPPHIRE AND DIAMOND BROOCH set with two rows of square step cut sapphires accented by round brilliant cut diamonds, no assay marks, 3.3cm, 15.8g. 

Estimate £800 - £1,200

AN ENAMEL, PEARL AND DIAMOND BUTTERFLY AND LADYBIRD BROOCH in 15ct yellow gold, designed as a butterfly and two ladybirds decorated in red, black, green and blue enamel, accented by seed pearls and rose cut diamonds, stamped 15, 4.1cm, 3.0g. 

Estimate £400 - £600

AN ANTIQUE PEARL AND DIAMOND BROOCH set throughout with pearls accented by old and rose cut diamonds, no assay marks, 4.3cm, 19.3g. 

Estimate £1,500 - £2,500

AN ANTIQUE CITRINE AND PEARL BROOCH set with an oval cut citrine in a border of pearls, no assay marks, 3.4cm, 14.2g. 

Estimate £300 - £500

AN ANTIQUE PEARL, DEMANTOID GARNET AND RUBY BIRD BROOCH in 15ct yellow gold, designed as a bird in flight, set throughout with pearls, the neck set with round cut demantoid garnets, the eye set with a round cut ruby, partial British hallmarks, 6.8cm,

Estimate £1,500 - £2,500

AN ANTIQUE DIAMOND BROOCH in yellow gold and silver, in foliate design set throughout with old and rose cut diamonds, suspending an old cut diamond drop, the diamonds all totalling 2.1-2.3 carats, no assay marks, 3.6cm, 6.6g. 

Estimate £1,500 - £2,500

A FINE ANTIQUE CAT'S EYE CHRYSOBERYL AND DIAMOND CLUSTER BROOCH in yellow gold and silver, set with an oval cat's eye chrysoberyl of approximately 19.00 carats in a cluster of old cut diamonds, the diamonds all totalling 4.0-4.5 carats, no assay mark

Estimate £20,000 - £30,000

AN ANTIQUE GARNET AND DIAMOND BROOCH set with a carved cabochon garnet, with an applied star motif set with old and rose cut diamonds, glass covered locket panel to the reverse, no assay marks, 3.4cm, 20.4g. 

Estimate £1,500 - £2,500

AN ANTIQUE DIAMOND EN TREMBLANT FLORAL SPRAY BROOCH in yellow gold and silver, designed as a floral spray, set throughout with old, cushion and single cut diamonds, the central flower set en tremblant, the diamonds all totalling 8.0-9.0 carats, no as

Estimate £8,000 - £12,000

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

AN ANTIQUE DIAMOND STAR BROOCH in yellow gold and silver, designed as a six rayed star set throughout with old and rose cut diamonds, the diamonds all totalling 1.5-2.0 carats, no assay marks, 2.5cm, 8.2g. 

Estimate £1,500 - £2,500

AN ANTIQUE PIETRA DURA BROOCH the oval face set with varicoloured hardstone depicting a bouquet of flowers, in a scrolling frame, no assay marks, 5.7cm, 12.3g. 

Estimate £500 - £700

AN ANTIQUE PERIDOT AND PEARL BROOCH in 15ct yellow gold, set with a round cut peridot accented by seed pearls, stamped 15, 3.5cm, 2.8g. 

Estimate £100 - £150

AN ANTIQUE PEARL FLORAL SPRAY BROOCH designed as a floral spray set throughout with pearls, no assay marks, 5.2cm, 10.7g. 

Estimate £400 - £600

AN ANTIQUE RUBY AND PEARL HORSESHOE BROOCH in yellow gold, designed as two horseshoes set with round cut rubies and pearls, glass covered locket panel to the reverse, no assay marks, 4.0cm, 7.5g. 

Estimate £400 - £600

AN ANTIQUE ENAMEL AND AGATE CAMEO BROOCH in yellow gold, set with an agate cameo carved to depict the profile of a classical woman, within a border of white enamel, no assay marks, 4.2cm, 18.6g.

Estimate £600 - £800

AN ANTIQUE PEARL AND DIAMOND BAR BROOCH in yellow gold and silver, the scrolling brooch set with a row of pearls accented by old and rose cut diamonds, no assay marks, 5.5cm, 9.0g. 

Estimate £500 - £700

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 £400 - £600

AN ANTIQUE DIAMOND, PEARL AND ENAMEL SWORD BROOCH in yellow gold, designed as a sword set throughout with old cut diamonds and seed pearls, the hilt decorated with white enamel, no assay marks, 10.0cm, 7.4g.

Estimate £400 - £600

AN ANTIQUE GARNET BROOCH in yellow gold, the circular brooch set with two round cabochon garnets, suspending two swag chains and a drop set with a further round cabochon garnet, glass covered locket panel to the reverse, no assay marks, 8.1cm, 20.4g.

Estimate £400 - £600

AN ESSEX CRYSTAL REVERSE INTAGLIO HORSE BROOCH in 14ct yellow gold, set with an oval reverse carved intaglio depicting a horse's head in profile on a mother of pearl background, in a border of twisted gold, the bail set with a round brilliant cut fan

Estimate £600 - £800

AN ANTIQUE GARNET BROOCH in yellow gold, set with a carbuncle cabochon garnet in an engraved border, no assay marks, 4.0cm, 10.9g.

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

AN ANTIQUE DIAMOND FLOWER BROOCH in 18ct yellow gold and silver, designed as a floral spray set throughout with old and rose cut diamonds, French import marks, 5.0cm, 9.5g. 

Estimate £1,000 - £1,500

AN ANTIQUE GEORGIAN PASTE BEETLE BROOCH designed as a beetle, the body set with cushion and round cut purple and orange paste, cabochon red paste to the eyes, no assay marks, 5.5cm, 33.1g. 

Estimate £2,500 - £3,500

AN ANTIQUE PEARL CRESCENT MOON BROOCH in yellow gold, designed as a crescent moon set with a row of graduating pearls, accented by a foliate style spray set with further pearls, inscribed '26/6/95', no assay marks, 5.1cm, 7.7g. 

Estimate £400 - £600