AN ANTIQUE OPAL AND DIAMOND CRESCENT MOON BROOCH in yellow gold, designed as a crescent moon set with cabochon opals, accented by rose cut diamonds, marked indistinctly, 2.1cm, 3.1g. 

Estimate £500 - £700

AN ANTIQUE PEARL AND ENAMEL BROOCH in yellow gold, the scrolling body decorated with pink and green guilloche enamel, accented by trios of pearls, no assay marks, 3.0cm, 3.0g. 

Estimate £300 - £500

AN ANTIQUE DIAMOND STAR BROOCH / PENDANT in yellow gold and silver, designed as an eight rayed star set throughout with old and rose cut diamonds, the diamonds all totalling 3.1-3.3 carats, detachable brooch fittings, no assay marks, 4.6cm, 13.5g.

Estimate £2,500 - £3,500

A VINTAGE PERIDOT, EMERALD AND DIAMOND BROOCH in platinum, the square openwork brooch set with a octagonal step cut peridot of approximately 10.64 carats accented by single cut diamonds, in a frame of square step cut emeralds and old European cut dia

Estimate £2,000 - £3,000

A PINK TOURMALINE, AQUAMARINE, GREEN TOURMALINE AND DIAMOND BAR BROOCH in yellow gold and platinum, set with a cushion cut pink tourmaline, aquamarine and green tourmaline, accented by old and rose cut diamonds, no assay marks, 5.9cm, 7.3g. 

Estimate £800 - £1,200

AN ANTIQUE RUBY, PEARL AND DIAMOND BROOCH in 18ct yellow gold, designed as an open circle set with square step cut rubies accented by pearls and rose cut diamonds, stamped 18ct, 2.5cm, 3.7g. 

Estimate £800 - £1,200

AN ANTIQUE SAPPHIRE, PEARL AND DIAMOND HORSESHOE AND RIDING CROP BROOCH designed as a horseshoe set with oval cut sapphires, pearls and an old cut diamond, intersected by a riding crop, no assay marks, 4.4cm, 7.2g. 

Estimate £500 - £700

A FINE ANTIQUE DIAMOND FLOWER BROOCH in gold and silver, designed as the head of a flower, set throughout with old cut diamonds, the diamonds all totalling 4.4-4.8 carats, no assay marks, 2.8cm, 5.4g.

Estimate £2,000 - £3,000

AN EMERALD AND DIAMOND CIRCLE BROOCH in white gold, designed as three interlocking circles, set with round cut diamonds and calibre cut emeralds, no assay marks, 3.0cm, 4.6g. 

Estimate £600 - £800

A VINTAGE EMERALD AND DIAMOND BOW BROOCH in 18ct white and yellow gold, designed as a ribbon tied into a bow, set with square step cut emeralds and round brilliant cut diamonds, indistinct British hallmarks, 4.3cm, 12.6g.

Estimate £1,000 - £1,500

AN ANTIQUE EMERALD AND DIAMOND SNAKE BROOCH in yellow gold, designed as a snake coiled around itself, set with a row of old cut diamonds, the eyes set with round cabochon emeralds, suspending a heart shaped locket set with a diamond from its mouth, n

Estimate £800 - £1,200

A RUBY HIPPOPOTAMUS BROOCH in 9ct yellow gold, designed as a hippopotamus with ruby eyes, H G maker's mark, full British hallmarks, 4.0cm, 16.3g. 

Estimate £500 - £700

AN ANTIQUE PEARL HARP BROOCH designed as a harp set with seed pearls, no assay marks, 3.9cm, 3.4g. 

Estimate £200 - £300

AN ENAMEL ROYAL WELSH REGIMENT BROOCH in 9ct yellow gold, designed as the cap badge of the Royal Welsh Regiment featuring the Prince of Wales feathers, coronet and motto 'Ich Dien', decorated with blue, white and red enamel, stamped 9CT, 2.8cm, 5.6g.

Estimate £200 - £300

AN ANTIQUE EDWARDIAN PHEASANT BROOCH in 15ct yellow gold, the brooch designed as a pheasant, the head and neck relieved in red, green, and yellow enamel, the eye set with a cabochon cut garnet, stamped 15CT, 4.9cm, 4.8g. 

Estimate £400 - £600

AN ANTIQUE ONYX AND PEARL BROOCH comprising a star set with seed pearls in an onyx surround, the border accented by beadwork, with a glass locket to the reverse, no assay marks, 4.9cm, 15.8g. 

Estimate £350 - £450

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 £3,000 - £5,000

AN ANTIQUE DIAMOND FLOWER BROOCH in yellow gold and silver, designed as a floral spray set throughout with old and rose cut diamonds, the diamonds all totalling 1.7-1.8 carats, no assay marks, 5.8cm, 7.5g. 

Estimate £600 - £800

AN ANTIQUE DIAMOND BROOCH in white gold, the oval openwork brooch set with a row of old cut diamonds, accented by further old cut diamonds, the diamonds all totalling 3.1-3.3 carats, no assay marks, 5.6cm, 9.1g. 

Estimate £3,000 - £5,000

A RUBY AND DIAMOND TORTOISE BROOCH in yellow and white gold, designed as a tortoise, the shell set with round cut rubies, the head, legs and tail set with single cut diamonds, no assay marks, 4.5cm, 12.4g. 

Estimate £800 - £1,200

AN ANTIQUE VICTORIAN DIAMOND BROOCH in 15ct yellow gold, set to the centre with an old cut diamond in a surround of gold wirework, accented by further wirework and beadwork, full British hallmarks for Birmingham 1876, 4.7cm, 5.7g. 

Estimate £250 - £350

AN ANTIQUE DUTCH PEARL AND DIAMOND HORSESHOE AND RIDING CROP BROOCH in 14ct yellow gold, the circular brooch with a horseshoe motif set with a rose cut diamond and pearls, the border designed as a riding crop accented by further pearls, Dutch assay m

Estimate £150 - £250

AN ANTIQUE ENAMEL DUCK BAR BROOCH in 15ct yellow gold, the bar with an applied duck motif, the head decorated with green and yellow enamel, no assay marks, 5.0cm, 2.6g. 

Estimate £150 - £250

A GREEN PASTE BROOCH in 9ct yellow gold, the circular openwork brooch set throughout with square step cut green paste stones, JCG maker's mark, full British hallmarks, 5.3cm, 20.7g. 

Estimate £400 - £600

AN EMERALD TOAD BROOCH in 18ct yellow gold, designed as a toad covered with white gold beads, the eyes set with cabochon emeralds, stamped 750, 5.5cm, 24.8g. 

Estimate £1,500 - £2,500

A PEARL AND DIAMOND BAR BROOCH in 18ct white gold, set with alternating pearls and round brilliant cut diamonds, stamped 750, 9.0cm, 11.5g. 

Estimate £500 - £700

AN ANTIQUE ESSEX CRYSTAL AND DIAMOND BROOCH in yellow gold, comprising an Essex crystal carved and painted to depict a duck flying over a pond, in a twisted border accented by rose cut diamonds, no assay marks, 3.0cm, 10.3g.

Estimate £300 - £500

AN ANTIQUE RUBY AND DIAMOND GIARDINETTO BROOCH in yellow gold and silver, designed as a basket of flowers, set with rose cut diamonds and round cut rubies, inscribed 1649, no assay marks, 3.8cm, 9.8g.

Estimate £2,000 - £3,000

AN ANTIQUE AGATE CAMEO BROOCH in yellow gold, set with an oval agate cameo carved to depict the profile of a classical lady, the border accented by wirework, no assay marks, 4.8cm, 23.5g. 

Estimate £600 - £800

AN ANTIQUE VICTORIAN GARNET LOCKET BROOCH in yellow gold, the ornate body set with an oval cabochon garnet and accented by beadwork, suspending a drop of similar design and swag chains, with a glass covered locket compartment to the reverse, no assay

Estimate £600 - £800

AN ANTIQUE GEORGIAN SEPIA MOURNING BROOCH in yellow gold, painted with the design of an urn, with the text 'William C Little Obit My 18th 1799 AE 19 Years', no assay marks, 3.1cm, 3.7g. 

Estimate £400 - £600

AN ENAMEL, PEARL AND DIAMOND BROOCH in yellow gold, the oval body comprising a foliate motif set with rose cut diamonds over a blue enamel background, set within a border of pearls, no assay marks, 3.0cm, 10.3g. 

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 DIAMOND EN TREMBLANT FLORAL SPRAY BROOCH in yellow gold and silver, designed as a floral spray, the main flower set en tremblant, set throughout with rose cut diamonds, no assay marks, 6.0cm, 13.9g.

Estimate £2,000 - £3,000

AN ANTIQUE DIAMOND AND ENAMEL BROOCH in yellow gold, designed as a bar terminating at each end with a club motif set with rose cut diamonds relieved in black enamel, suspending a circular pendant designed as a bird perched on a fence set with further

Estimate £1,200 - £1,600

AN ANTIQUE DIAMOND SPRAY BROOCH in yellow gold and silver, designed as a spray of foliage set throughout with rose cut diamonds, no assay marks, 4.5cm, 9.7g.

Estimate £600 - £800

AN ANTIQUE GARNET AND PEARL ETRUSCAN REVIVAL LOCKET BROOCH in yellow gold, set with an octagonal step cut garnet in a cluster of pearls, with a glass covered locket compartment to the reverse, no assay marks, 3.5cm, 10.3g.

Estimate £300 - £500

AN ANTIQUE ENAMEL DUCK BAR BROOCH in 15ct yellow gold and platinum, the bar with an applied duck in flight motif, the duck's head relieved in green and yellow enamel, stamped 15CT PLAT, 5.5cm, 3.3g. 

Estimate £150 - £250

AN ANTIQUE DIAMOND, PEARL AND ENAMEL BROOCH in 9ct yellow gold and silver, in circular form decorared with blue and white enamel, set with old cut diamonds in a frame of further old cut diamonds and pearls, no assay marks, 2.8cm, 6.6g.

Estimate £1,200 - £1,600

AN ANTIQUE PEARL BEE BROOCH in 15ct yellow gold, the body set with two pearls, the reverse of the wings inscribed 'J.D A.E.B', stamped 15ct, 2.8cm, 2.0g.

Estimate £300 - £500

AN ANTIQUE ART DECO RUBY AND DIAMOND BROOCH in white gold, the openwork brooch set with a round cut ruby to the centre and old cut diamonds, no assay marks, 5.4cm, 7.8g. 

Estimate £500 - £700

A RUBY AND DIAMOND OWL BROOCH in 18ct yellow and white gold, designed as two owls perched on a branch set with round brilliant cut diamonds, the eyes set round cabochon rubies, full British hallmarks for Lonon 1999, 2.7cm, 12.2g. 

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

AN ANTIQUE NATURAL SALTWATER PEARL AND DIAMOND BROOCH in yellow gold and silver, set with a row of five pearls accented by old cut diamonds, the pearls ranging from 5.0mm to 6.3mm, no assay marks, 4.2cm, 7.1g. Accompanied by a gemmological report sta

Estimate £1,200 - £1,600

A GEMSET DOG BROOCH in yellow gold, designed as a terrier with ruby eyes, the nose set with a round cut sapphire, the collar set with single cut diamonds, no assay marks, 3.4cm, 9.9g. 

Estimate £500 - £700

A DIAMOND, EMERALD AND PEARL BROOCH / PENDANT in white gold, set to the centre with a round brilliant cut diamond in a heart shaped border set with step cut emeralds, accented by bow and foliate motifs set with further diamonds, no assay marks, 5.3cm

Estimate £1,200 - £1,600

AN ANTIQUE OPAL AND DIAMOND BROOCH, 19TH CENTURY in yellow gold and silver, comprising a clover motif set with cabochon opals accented by a scrolling border set with old and rose cut diamonds and two further cabochon opals, no assay marks, 4.5cm, 6.4

Estimate £500 - £700

AN ANTIQUE DIAMOND, PEARL AND RUBY WREATH BROOCH in yellow gold and silver, designed as a wreath set with rose cut diamonds and pearls, tied together with a bow set with cushion cut rubies, no assay marks, 3.5cm, 6.3g.

Estimate £800 - £1,200

AN ANTIQUE RUBY BIRD BROOCH in 15ct yellow gold, designed as a plump pigeon, the eye set with a round cut ruby, no assay marks, 3.5cm, 10.6g. 

Estimate £500 - £700

AN ANTIQUE DIAMOND BROOCH in yellow gold and silver, designed as an open heart set to the centre with an old cut diamond of approximately 0.75 carats, surmounted by a bow set with further old cut diamonds, no assay marks, 3.2cm, 8.4g. 

Estimate £3,500 - £5,500

AN ANTIQUE VICTORIAN SWEETHEART BROOCH in 18ct yellow gold, comprising a twin heart motif over a ground of blue glass and a border of half pearls, the reverse engraved 'Her Children arise up and call her blessed, prof XXXI v28, to Margaret, the wife

Estimate £1,000 - £1,500

AN EMERALD AND DIAMOND NAVETTE BROOCH in yellow gold, the navette face set with an old cut diamond in a cluster of octagonal step cut emeralds and further old cut diamonds, no assay marks, 5.1cm, 6.1g. 

Estimate £800 - £1,200

AN ANTIQUE TURQUOISE AND PEARL BROOCH in yellow gold, designed as a horseshoe set with pearls, accented by cabochon turquoise, no assay marks, 5.0cm, 6.4g. 

Estimate £200 - £300

A DIAMOND NAVAL CROWN BROOCH in 18ct white gold and platinum, set throughout with round brilliant cut diamonds, stamped 18CT PLAT, 2.9cm, 6.0g.  

Estimate £600 - £800

ATTR KARL ROTHMULLER, A FINE ANTIQUE NATURAL SALTWATER PEARL, RUBY AND DEMANTOID GARNET BROOCH in yellow gold and silver, the scrolling body set with pearls, round cut rubies, round and oval cut demantoid garnets, the central pearl of 11.7mm, no assa

Estimate £8,000 - £12,000

AN ANTIQUE PASTE BROOCH in silver, the foliate brooch set with oval and cushion cut purple paste stones, accented by black dot paste, no assay marks, 4.0cm, 9.8g. 

Estimate £150 - £250

A BIRD CAMEO BROOCH in yellow gold, set with a shell cameo carved to depict an Australian kookaburra bird, marked indistinctly, 5.9cm, 17.1g. 

Estimate £1,000 - £1,500

AN ANTIQUE GARNET, DIAMOND AND RUBY INSECT BROOCH in yellow gold and silver, designed as a winged insect, the body set with an oval cabochon garnet, the wings set with rose cut diamonds, the eyes set with round cabochon rubies, no assay marks, 3.8cm,

Estimate £300 - £500

AN ANTIQUE ENAMEL AND DIAMOND HAND BAR BROOCH in 15ct yellow gold, comprising a hand motif relieved in red enamel and a green enamel scroll with the date '26TH MARCH 1913', the bar terminating at each end with trios of old cut diamonds, stamped 15, 4

Estimate £500 - £700

AN ANTIQUE AGATE CAMEO set with an oval cameo carved to depict the profile of a classical lady, no assay marks, 4.5cm, 23.6g. 

Estimate £400 - £600

AN ANTIQUE PORTRAIT MINIATURE BROOCH in yellow gold, set with a portrait miniature of the profile of a general, in a gold cannetille border, no assay marks, 2.8cm, 6.1g. 

Estimate £400 - £600

AN ANTIQUE DIAMOND BROOCH in 15ct yellow gold, the navette shaped brooch set with old cut diamonds in a scrolling border, stamped 15CT, 4.5cm, 5.3g. 

Estimate £200 - £300

AN ANTIQUE PERIDOT AND PEARL BAR BROOCH in yellow gold, set to the centre with an oval cut peridot of 6.08 carats, the bar-shaped brooch set throughout with seed pearls, no assay marks, 9.7cm, 10.5g. 

Estimate £500 - £700

AN ANTIQUE AGATE CAMEO BROOCH in yellow gold, set with an oval agate cameo carved to depict the bust of a classical woman, suspending three articulated gold drops, no assay marks, 8.3cm, 32.8g.

Estimate £2,000 - £3,000

AN ANTIQUE DIAMOND AND ENAMEL BROOCH in yellow gold, the oval brooch decorated with blue and white enamel, with an applied garland motif set with rose cut diamonds, inscribed 'C & G June 9th 1898', no assay marks, 2.4cm, 4.4g.

Estimate £600 - £800

AN ANTIQUE PEARL AND DIAMOND SPRAY BROOCH in yellow gold and silver, in scrolling foliate design set throughout with old, rose and round brilliant cut diamonds and two pearls of 5.9mm and 6.4mm respectively, the diamonds all totalling 2.2-2.4 carats,

Estimate £1,500 - £2,500

AN ANTIQUE DIAMOND FLORAL SPRAY BROOCH in yellow gold and silver, designed as a floral spray, set throughout with old and rose cut diamonds, the diamonds all totalling 0.8-1.0 carats, no assay marks, 4.8cm, 6.1g.

Estimate £400 - £600