TIFFANY & CO., A DIAMOND FOUR LEAF CLOVER BROOCH in yellow gold and platinum, designed as a four leaf clover set throughout with old cut diamonds, signed Tiffany & Co., no assay marks, 1.8cm, 4.4g. 

Estimate £1,500 - £2,500

A DIAMOND CRESCENT MOON BROOCH in yellow gold, designed as a crescent moon set with a row of round brilliant cut diamonds, the diamonds all totalling 0.8-0.9 carats, no assay marks, 2.8cm, 7.1g. 

Estimate £800 - £1,200

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 £1,500 - £2,500

AN ANTIQUE MULTIGEM CLOVER BROOCH in 15ct yellow gold, designed as a three leaf clover set with a pear shaped peridot, pink tourmaline, and aquamarine, accented by a pearl, stamped 15ct, 4.0cm, 3.3g. 

Estimate £200 - £300

AN ANTIQUE RUBY AND PEARL CIRCLE BROOCH in yellow gold, designed as a circle set with calibre cut rubies in a border of pearls, no assay marks, 2.4cm, 4.4g. 

Estimate £400 - £600

A RUBY DACHSHUND BROOCH in 18ct yellow gold, designed as a dachshund standing on its hind legs, the eyes set with round cut rubies, stamped 750, 3.1cm, 9.8g. 

Estimate £500 - £700

A DIAMOND DOUBLE CLIP BROOCH, 1940S in platinum, in scrolling design, set throughout with round brilliant, single and baguette cut diamonds, the two clips detachable from the frame as a pair of clip brooches, no assay marks, 4.0cm, 15.7g. 

Estimate £2,500 - £3,500

CARTIER, A SAPPHIRE, DIAMOND AND ENAMEL FLOWER BROOCH in 14ct yellow gold, set to the centre with a cluster of round cut sapphires and a round brilliant cut diamond, the petals decorated with blue, white and yellow enamel, the leaf decorated with gre

Estimate £3,000 - £5,000

AN ANTIQUE DIAMOND DRAGONFLY BROOCH in yellow gold and silver, designed as a dragonfly, set throughout with old and rose cut diamonds, the diamonds all totalling 2.5-3.0 carats, no assay marks, 6.8cm, 10.9g. 

Estimate £2,000 - £3,000

A FINE ANTIQUE DIAMOND MOTH BROOCH in yellow gold and silver, designed as a moth set throughout with rose cut diamonds, the diamonds all totalling 2.8-3.2 carats, no assay marks, 4.0cm, 16.1g. 

Estimate £3,000 - £5,000

AN ANTIQUE ROCK CRYSTAL INSECT BROOCH in yellow gold, designed as an insect set with orange and pink foiled rock crystal, no assay marks, 2.3cm, 3.0g. 

Estimate £600 - £800

AN ANTIQUE GREEN TOURMALINE AND PEARL BROOCH / PENDANT in yellow gold, set with a cushion cut green tourmaline in a stylised border set with pearls, no assay marks, 2.8cm, 6.1g. 

Estimate £600 - £800

AN ANTIQUE ENAMEL AND DIAMOND PANSY BROOCH in yellow gold, the pansy decorated with blue enamel accented by old and single cut diamonds, no assay marks, 2.7cm, 9.0g. 

Estimate £800 - £1,200

AN ANTIQUE DIAMOND BROOCH in yellow gold, in foliate design with the years 1850 and 1900, set throughout with rose and old cut diamonds, no assay marks, 3.9cm, 5.7g. 

Estimate £700 - £900

AN ANTIQUE AQUAMARINE BROOCH in yellow gold, set with oval cut aquamarines in a foliate style border, no assay marks, 5.2cm, 12.5g. 

Estimate £1,500 - £2,500

AN ANTIQUE AMETHYST AND DIAMOND HALLEY'S COMET BROOCH in yellow gold and silver, set with a round cut amethyst accented by old and rose cut diamonds, no assay marks, 3.3cm, 5.3g. 

Estimate £800 - £1,200

AN ANTIQUE DIAMOND AND RUBY FLY BROOCH in yellow gold and silver, designed as a fly set throughout with old and rose cut diamonds, the eyes set with cabochon rubies, the bar terminating with a pearl, no assay marks, 4.8cm, 4.8g. 

Estimate £500 - £700

AN ANTIQUE VICTORIAN MOONSTONE AND PEARL HEART BROOCH in yellow gold and silver, set to the centre with a heart shaped moonstone in a border of pearls, no assay marks, 2.9cm, 9.1g. 

Estimate £1,000 - £1,500

AN ANTIQUE RUBY, DIAMOND AND PEARL CRESCENT MOON BROOCH in yellow gold and silver, designed as a stylised crescent moon, set with cushion cut rubies, old and rose cut diamonds and pearls, no assay marks, 4.5cm, 5.5g. 

Estimate £300 - £500

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

AN ANTIQUE CAMEO BROOCH / PENDANT, 19TH CENTURY in yellow gold, set with a hard stone cameo of a Classical man in profile, in a border of eight additional cameos carved from various hard stones including lapis lazuli, malachite, agate and amethyst, a

Estimate £3,000 - £5,000

AN ANTIQUE EGYPTIAN REVIVAL ENAMEL, RUBY AND DIAMOND PHARAOH BROOCH, 19TH CENTURY in yellow gold, set with a green hardstone carved to depict the head of a pharaoh accented by a cabochon ruby, rose cut diamonds and red enamel, within a winged border

Estimate £2,000 - £3,000

AN ANTIQUE DIAMOND AND GARNET DEER BROOCH in yellow gold and silver, designed as a fawn prancing on foliage, set throughout with rose cut diamonds, the eye set with a cabochon garnet, no assay marks, 3.7cm, 4.9g. 

Estimate £700 - £900

A DACHSHUND BROOCH in 18ct yellow gold, designed as a dachshund with an elongated neck, the eye and collar decorated with enamel, stamped 750, 3.8cm, 5.6g. 

Estimate £350 - £450

AN OPAL AND DIAMOND SWEETHEART BROOCH in yellow gold, set with a heart shaped cabochon opal in a border of round brilliant cut diamonds, surmounted by a bow set with further round brilliant cut diamonds, no assay marks, 2.5cm, 4.8g. 

Estimate £400 - £600

A DIAMOND BOW BROOCH designed as an openwork bow, set throughout with old and single cut diamonds, one diamond missing, no assay marks, 6.0cm, 12.8g. 

Estimate £1,000 - £1,500

A VINTAGE DIAMOND BROOCH in 18ct yellow gold, the scrolling brooch comprising twisted rope work accented by round brilliant cut diamonds, stamped 750, 5.5cm, 14.3g. 

Estimate £700 - £900

A RETRO RUBY DIAMOND FLOWER BROOCH in tricolour gold, set to the centre with a cluster of round cut rubies, the stem set with a row of round cut rubies and old cut diamonds, one diamond deficient, no assay marks, 5.8cm, 12.1g. 

Estimate £350 - £450

CARTIER, A COLOMBIAN EMERALD, RUBY AND DIAMOND OWL BROOCH, CIRCA 1950 in 18ct yellow gold, designed as an owl, set with a Mughal carved emerald of approximately 5.00 carats, round cut ruby eyes framed by round cut diamonds, with further rubies and di

Estimate £20,000 - £30,000

A DIAMOND OARS BROOCH in white gold, designed as two crossed rowing oars, set with round brilliant and baguette cut diamonds, no assay marks, 4.5cm, 4.9g. 

Estimate £1,000 - £1,500

AN ANTIQUE DIAMOND BIRD BROOCH in yellow gold, designed as a bird with outstretched wings, the wings set with a row of rose cut diamonds, no assay marks, 2.6cm, 7.1g. 

Estimate £600 - £800

A DIAMOND PLAQUE BROOCH the openwork geometric brooch set throughout with old cut diamonds, the diamonds all totalling 1.4-1.6 carats, marked indistinctly, 3.6cm, 4.6g. 

Estimate £1,000 - £1,500

A DIAMOND AND ENAMEL DOG BROOCH in yellow gold, designed as a dog, the collar in black enamel with an old cut diamond, no assay marks, 5.0cm, 8.2g. 

Estimate £500 - £700

AN ANTIQUE EGYPTIAN REVIVAL BROOCH in yellow gold, set a brown hardstone carved to depict a scarab, accented by wings and snake motifs, no assay marks, 5.6cm, 8.2g. 

Estimate £500 - £700

AN ANTIQUE GEORGIAN PEARL AND DIAMOND PORTRAIT MINIATURE BROOCH in yellow gold, set with a painted miniature of a young gentleman in a border of pearls, surmounted by an urn motif set with rose cut diamonds, no assay marks, 3.8cm, 6.6g. 

Estimate £1,000 - £1,500

AN ANTIQUE TURQUOISE KNOT BROOCH in yellow gold, in a knotted design set with cabochon turquoise, suspending a heart shaped locket set with a further turquoise, no assay marks, 3.00cm, 5.0g. 

Estimate £300 - £500

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 PEARL, JET AND ENAMEL MOURNING BROOCH in yellow gold, set with an oval glass covered locket panel containing hairwork, in a double border of faceted jet and pearls, accented by black enamel, inscribed 'Aneas Barkly Ob 17 Aug 1836', no assa

Estimate £400 - £600

AN ANTIQUE PEARL AND ENAMEL BUCKLE BROOCH in yellow gold, the circular body with an applied belt buckle motif set with seed pearls and blue enamel, with a glass covered locket compartment to the reverse, suspending a tassel, no assay marks, 5.8cm, 14

Estimate £400 - £600

AN ANTIQUE ESSEX CRYSTAL JOCKEY BROOCH in yellow gold, set with a reverse carved intaglio depicting a horse and jockey on a ground of mother of pearl, in a border of seed pearls, no assay marks, 2.5cm, 8.5g. 

Estimate £1,200 - £1,800

A VINTAGE PEARL BROOCH in 14ct yellow gold, designed as a spray of foliage set with pearls, maker's mark M, stamped K14, size 5.5cm, 9.8g.

Estimate £250 - £350

A DIAMOND VIOLIN BROOCH / PENDANT in yellow gold, designed as a violin accented by round cut diamonds, no assay marks, 4.0cm, 5.7g. 

Estimate £600 - £800

A VINTAGE GOLD MARE AND FOAL HORSE BROOCH in 9ct yellow gold, designed as a mare standing with her foal, A & W maker's mark, full British hallmarks for Birmingham 1973, 3.3cm, 14.4g. 

Estimate £500 - £700

A DIAMOND AND SAPPHIRE BROOCH in 14ct yellow and white gold, in an openwork design set throughout with old and rose cut diamonds, suspending a pear shaped sapphire drop, stamped 585, 3.6cm, 6.6g. 

Estimate £800 - £1,200

A DIAMOND AND RUBY FLY BROOCH in 14ct yellow gold, designed as a fly, the body set with round brilliant cut diamonds, the eyes set with round cut rubies, stamped 14K, 1.9cm, 3.7g.

Estimate £1,000 - £1,500

A VINTAGE MULTICOLOUR SAPPHIRE FLOWER BROOCH in yellow gold, the stylised flower set with a cluster of round cut pink, blue and yellow sapphires, no assay marks, 4.0cm, 15.0g. 

Estimate £350 - £450

A PEARL AND DIAMOND FLOWER BROOCH / PENDANT in yellow gold, designed as a flower set with an old European cut diamond in a cluster of baroque pearls, no assay marks, 3.0cm, 16.8g. 

Estimate £1,200 - £1,600

A PEARL AND BLUE GEMSTONE BROOCH in silver, the openwork design set with two baroque pearls and one round cut blue garnet topped doublet, accented by a floral design, no assay marks, 3.9cm, 6.8g. 

Estimate £40 - £60

AN ENAMEL TIGGER BROOCH designed as Tigger from Winnie the Pooh holding a bouquet of flowers, the flowers decorated with blue enamel, signed Disney, no assay marks, 3.3cm, 10.7g. 

Estimate £50 - £70

AN ANTIQUE DIAMOND CLUSTER BAR BROOCH in yellow gold, set with a cluster of old cut diamonds, no assay marks, 6.0cm, 3.5g. 

Estimate £300 - £500

AN ANTIQUE DIAMOND, RUBY AND EMERALD BROOCH in yellow gold, the scrolling brooch set with clusters of old cut diamonds, round cut rubies and cushion cut emeralds, no assay marks, 3.5cm, 3.6g. 

Estimate £400 - £600

A MOONSTONE AND PEARL MAN IN THE MOON BROOCH in yellow gold, 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 ART DECO DIAMOND BROOCH in platinum, the openwork pierced brooch set throughout with old cut diamonds, the diamonds totalling approximately 1.20 carats, no assay marks, 4.8cm, 7.3g. 

Estimate £1,000 - £1,500

A MULTICOLOUR SAPPHIRE, PEARL AND DIAMOND EN TREMBLANT FLOWER BROOCH in gold and silver, the en tremblant flower set with a pearl  and round cut yellow sapphires, accented by round cut green sapphires and old cut diamonds, no assay marks, 5.0cm, 6.2g

Estimate £1,500 - £2,500

AN ANTIQUE ENAMEL, RUBY AND DIAMOND BIRD BROOCH in yellow gold, set with a cushion cut ruby in a border of rose cut diamonds and a ruby eye, set throughout with rose cut diamonds, accented by red and green enamel, no assay marks, 4.2cm, 5.1g.

Estimate £1,500 - £2,500

AN ANTIQUE RUBY, PEARL AND DIAMOND BAR BROOCH in 18ct yellow gold, comprising a cluster of old cut diamonds, calibre cut rubies and pearls, accented by further diamonds, stamped 18CT, 5.5cm, 4.9g. 

Estimate £400 - £600

A SAPPHIRE AND DIAMOND BROOCH in yellow gold, the scrolling brooch set with a round cut sapphire and old cut diamonds, no assay marks, 4.0cm, 4.7g.

Estimate £300 - £500

A RUBY, DIAMOND AND PEARL CLOVER BAR BROOCH in 18ct yellow gold, set with a row of square step cut rubies and rose cut diamonds, accented by pearls in a clover motif, stamped 750, 8.6cm, 6.8g. 

Estimate £400 - £600

AN ANTIQUE ART NOUVEAU DEMANTOID GARNET AND DIAMOND BROOCH / PENDANT in 56 zolotnik gold, the scrolling pendant set with oval and round cut demantoid garnets accented by rose cut diamonds, suspending an oval cut demantoid garnet drop, PB maker's mark

Estimate £1,000 - £1,500

AN ANTIQUE GEMSET CRESCENT MOON BROOCH in 15ct yellow gold, the gold crescent with an applied clover motif set with an old cut diamond, a round cut ruby and and a round cut sapphires, accented by twisted wirework and further diamonds, stamped 15CT, 5

Estimate £300 - £500

AN ANTIQUE AQUAMARINE AND GARNET BROOCH in 15ct yellow gold, the scrolling brooch set to the centre with an oval cut aquamarine accented by round cut garnets, no assay marks, 5.0cm, 11.3g. 

Estimate £400 - £600

AN ANTIQUE SAPPHIRE AND DIAMOND CRESCENT MOON BROOCH in 15ct yellow gold, designed as a crescent moon set with a row of alternating round cut sapphires and rose cut diamonds, stamped 15CT, 5.1cm, 3.2g. 

Estimate £350 - £450

AN EMERALD AND DIAMOND BROOCH in yellow gold and silver, the openwork foliate style brooch set with square and rectangular step cut emeralds, accented by rose cut diamonds, no assay marks, 7.2cm, 13.4g. 

Estimate £300 - £500

AN ANTIQUE PEARL AND DIAMOND BAR BROOCH in 15ct yellow gold and platinum, set with an old cut diamond in a border of seed pearls, stamped PLAT 15CT, 5.9cm, 3.8g.

Estimate £300 - £500

A JADEITE JADE AND DIAMOND BAR BROOCH in 18ct white gold and platinum, set with a circular carved jadeite jade accented by single cut diamonds, stamped PT 18CT, 5.0cm, 5.2g. 

Estimate £300 - £500

A SYNTHETIC TURQUOISE AND PEARL INSECT BROOCH in silver gilt, designed as an insect set with two cabochon cut synthetic turquoise, accented by seed pearls, no assay marks, 3.2cm, 5.9g. 

Estimate £250 - £350

AN ANTIQUE DIAMOND SCROLL BAR BROOCH in gold and silver, the bar with an applied scroll motif set with old cut diamonds, accented by further old cut diamonds, the diamonds all totalling 1.4-1.6 carats, no assay marks, 5.0cm, 4.7g. 

Estimate £700 - £900

AN ANTIQUE NATURAL PEARL AND DIAMOND BROOCH in platinum, set to the centre with a natural pearl measuring 10.2mm, in a double border of old cut diamonds, no assay marks, 2.8cm, 7.3g. Accompanied by a gemmological report stating that the pearl is of n

Estimate £6,000 - £8,000

AN ANTIQUE SAPPHIRE, DIAMOND AND ENAMEL BAR BROOCH in 18ct yellow gold and platinum, set with groups of square step cut sapphires and single cut diamonds, accented by a border of white enamel, stamped 18CT&PT, 6.3cm, 5.5g. 

Estimate £500 - £700

AN ANTIQUE PEARL AND DIAMOND BROOCH / PENDANT in yellow gold, the scrolling body set throughout with pearls and accented by an old cut diamond, suspending a pearl drop, no assay marks, 4.5cm, 5.3g. 

Estimate £350 - £450