A FINE ART DECO CHRYSOPRASE, DIAMOND AND ONYX BROOCH, EARLY 20TH CENTURY in platinum and yellow gold, comprising a polished chrysoprase hoop, within a frame set with single cut diamonds and polished onyx, the diamonds totalling 1.0-1.2 carats, no ass

Estimate £2,000 - £3,000

AN EXCEPTIONAL ANTIQUE AQUAMARINE AND DIAMOND BROOCH, CIRCA 1900 set with a large cushion cut aquamarine of approximately 124.42 carats, in a stylised border set with old cut and rose cut diamonds, no assay marks, 4.5cm, 40.1g.

Estimate £15,000 - £20,000

A FINE DIAMOND BROOCH, 1950s in scrolling design, set throughout with round brilliant, transitional and single cut diamonds, accented by sprays of baguette and marquise cut diamonds, the diamonds all totalling 7.5-8.5 carats, no assay marks, 7.3cm, 2

Estimate £3,000 - £5,000

AN ART DECO JADEITE JADE AND DIAMOND BROOCH, EARLY 20TH CENTURY set with a large jadeite jade plaque carved in the Chinese style to depict two snails among foliage, accented by single cut diamonds, no assay marks, 5.4cm, 11.2g. Accompanied by the ori

Estimate £2,000 - £3,000

CARTIER, A RARE CHINOISERIE CORAL AND GARNET BROOCH, CIRCA 1950 in 18ct yellow gold, comprising a piece of coral carved to depict a man holding three carved coral flowers accented by round cut tsavorite garnets, signed Cartier and numbered, no assay

Estimate £15,000 - £20,000

THEO FENNELL, A MULTICOLOUR SAPPHIRE AND DIAMOND ICE CREAM CONE BROOCH in 18ct yellow gold, designed as a volcano erupting from an ice cream cone, the lava emulating strawberry sauce, set with round cut yellow and orange sapphires, the smoke plume se

Estimate £800 - £1,200

ELIZABETH GAGE, A ROCK CRYSTAL, PEARL, MOTHER OF PEARL AND ENAMEL BROOCH, 1995 in 18ct yellow gold, set with a rock crystal intaglio carved to depict a cherub, on a background of mother of pearl, within a border of green enamel accented by pearls, si

Estimate £2,500 - £3,500

CARTIER, A MULTI GEM AND DIAMOND GIARDINETTO BROOCH, 1989 in 18ct yellow gold, comprising a polished onyx pot set with round brilliant cut diamonds, the flowering plant set with carved chrysoprase and carnelian leaves, round cabochon sapphires and fu

Estimate £5,000 - £7,000

AN ANTIQUE UNTREATED JADEITE JADE AND DIAMOND BROOCH, EARLY 20TH CENTURY the oval brooch set to the centre with a cabochon jadeite jade of approximately 6.79 carats, the pierced border set with old European cut diamonds, marked indistinctly, no assay

Estimate £6,000 - £8,000

CARTIER, AN EMERALD AND ONYX PANTHERE DE CARTIER PIN BROOCH designed as the head of a panther, the eyes set with marquise cut emeralds, the nose set with polished onyx, signed Cartier and numbered, stamped 750, French assay marks, head 1.6cm, 11.4g. 

Estimate £4,000 - £6,000

CARTIER, A VINTAGE DIAMOND HUMMINGBIRD BROOCH, CIRCA 1960 in yellow gold, designed as a hummingbird perched on a branch, the body set with a cluster of round brilliant cut diamonds, the eye set with a hexagonal step cut diamond, signed Cartier London

Estimate £10,000 - £15,000

A VINTAGE JADEITE JADE AND DIAMOND BROOCH / PENDANT in platinum, comprising a scrolling bar set with five principal old cut diamonds, accented by single cut diamonds, suspending a jadeite jade drop carved to depict fruit and a flower, accented by sin

Estimate £5,000 - £7,000

A BELLE EPOQUE NATURAL SALTWATER PEARL AND DIAMOND BOW BROOCH designed as a bow set with a pearl of 8.4mm, accented by round brilliant cut diamonds, suspending a pearl drop of 11.6mm in an articulated frame set with round brilliant cut diamonds, susp

Estimate £20,000 - £30,000

A FINE ANTIQUE DIAMOND BROOCH the foliate style brooch set with old and rose cut diamonds, suspending three articulated rows of further old cut diamonds, the diamonds all totalling 7.5-8.5 carats, no assay marks, 5.8cm, 10.2g. 

Estimate £8,000 - £12,000

TIFFANY & CO., A DIAMOND CIRCLE BROOCH, 1940s in platinum, designed as an open circle set throughout with old European cut diamonds, the diamonds all totalling 4.3-4.5 carats, signed Tiffany & Co., no assay marks, 4.3cm, 7.2g. 

Estimate £3,000 - £5,000

A VINTAGE ROCK CRYSTAL, NEPHRITE JADE, TURQUOISE, DIAMOND AND ENAMEL FLOWER CLIP BROOCH in yellow gold, designed as a flower carved from frosted rock crystal, set with an oval cabochon turquoise, with a leaf carved nephrite jade and a leaf decorated

Estimate £2,000 - £3,000

AN ANTIQUE FRENCH SARDONYX, PEARL AND DIAMOND BROOCH in 18ct yellow gold, set with a sardonyx cameo carved to depict the bust of a classical woman with a crown of laurel leaves, within a border of pearls accented by rose cut diamonds, French assay ma

Estimate £600 - £800

A VINTAGE CORAL, EMERALD AND DIAMOND CLIP BROOCH in 18ct yellow gold, designed as an Asian figure holding a bowl and chopsticks, the body and head set with cabochon coral, the eyes set with round brilliant cut diamonds, the hat set with a round cut e

Estimate £1,500 - £2,500

PALOMA PICASSO FOR TIFFANY & CO., A GOLD STAR BROOCH, 1983 designed as a star, signed Paloma Picasso, signed Tiffany & Co. 1983, stamped 18K, 6.9cm, 20.7g. 

Estimate £1,500 - £2,500

TIFFANY & CO., A RETRO CITRINE AND RUBY FLOWER BROOCH in 14ct yellow gold, designed as a floral spray set with an octagonal step cut citrine of approximately 8.13 carats, accented by round cut rubies, signed Tiffany & Co., stamped 14K, 5.2cm, 17.6g. 

Estimate £1,200 - £1,600

AN ANTIQUE BAROQUE PEARL AND DIAMOND PANSY BROOCH in yellow gold, designed as a pansy set with baroque pearl petals and an old cut diamond, no assay marks, 3.7cm, 6.6g.

Estimate £400 - £600

ELIZABETH GAGE, AN ANCIENT ROMAN COIN, PEARL, DIAMOND AND ENAMEL BROOCH, 1991 in 18ct yellow gold, set with an ancient Roman coin depicting Constantine the Great c.330AD, within a border of red enamel, accented by pearls and round brilliant cut diamo

Estimate £2,000 - £3,000

EBERHARD, A RETRO RUBY, DIAMOND AND ENAMEL WATCH BROOCH in 18ct yellow gold, the scrolling foliate style brooch set with round cut rubies and single cut diamonds, relieved in green and blue enamel, with a circular watch face, signed Eberhard and numb

Estimate £1,000 - £1,500

A JADEITE JADE BROOCH in 14ct yellow gold, set with a jadeite jade plaque carved to depict fruit and flowers, within a foliate style frame, stamped 14K, 4.9cm, 10.2g.

Estimate £1,000 - £1,500

A VINTAGE JADEITE JADE AND PEARL BROOCH in 14ct yellow gold, comprising a polished jadeite jade disc, set with a round cabochon jadeite jade within a border of seed pearls, within a foliate style frame, stamped 14k, 3.6cm, 11.4g. 

Estimate £1,000 - £1,500

A VINTAGE INTERCHANGEABLE DIAMOND, RUBY AND SAPPHIRE FLOWER BROOCH designed as a flower pave set throughout with single cut diamonds, the centres interchangeable with clusters of round brilliant cut diamonds, round cut rubies and round cut sapphires,

Estimate £2,500 - £3,500

PHILLIPS BROTHERS & SONS, AN ANTIQUE VICTORIAN LAPIS LAZULI, GARNET, DIAMOND AND ENAMEL BROOCH in yellow gold, the domed body comprising polished lapis lazuli with an applied cabochon garnet set with an old cut diamond, accented by a radiating border

Estimate £2,000 - £3,000