A SOLITAIRE DIAMOND RING set with an old cut diamond of approximately 2.18 carats, the shoulders set with baguette cut diamonds, no assay marks, s...

AN ANTIQUE DIAMOND STAR BROOCH / PENDANT in yellow gold and silver, designed as a twelve rayed star set throughout with old and rose cut diamonds,...

A PAIR OF DIAMOND DROP EARRINGS each set with an old cut diamond, suspending a further old cut diamond drop of approximately 1.54 and 1.59 carats ...

LEITAO & IRMAO, AN ANTIQUE ANGEL'S SKIN CORAL AND DIAMOND CLUSTER BROOCH in yellow gold, set with an oval cabochon angel's skin coral in a cluster...

A PAIR OF ANTIQUE FRENCH SAPPHIRE AND DIAMOND CUFFLINKS in 18ct yellow gold, each set with a round cabochon sapphire in a cluster of old cut diamo...

A FRENCH ART DECO DIAMOND BRACELET in platinum, comprising a row of geometric links set with old and single cut diamonds, the diamonds all totalli...

AN ANTIQUE BLACK OPAL AND DIAMOND BROOCH / PENDANT in yellow gold and silver, set with an oval cabochon opal accented by clusters of old cut diamo...

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a marquise cut diamond of approximately 2.00 carats, the shoulders set with tapered bagu...

A YELLOW SAPPHIRE AND DIAMOND RING set with a cushion cut yellow sapphire of approximately 13.20 carats, the pierced mount accented by old cut dia...

FRED, A PEARL, DIAMOND, SAPPHIRE AND ENAMEL PENGUIN BROOCH in 18ct yellow gold, designed as a penguin set with a baroque pearl of 19.0mm, the eyes...

A PAIR OF DIAMOND FLOWER CLIP EARRINGS each set to the centre with an old cut diamond in a cluster of single cut diamonds, the openwork petals set...

CALLEIJA, A PARAIBA TOURMALINE AND DIAMOND DRESS RING in 18ct white gold, set with an oval mixed cut Paraiba tourmaline of approximately 20.39 car...

LALAOUNIS, A GOLD INTAGLIO RING carved to depict Minoan women worshiping a goddess in a field of flowers, after an ancient ring 1500-1450 BC in th...

A VINTAGE FRENCH DIAMOND DOG BROOCH in 18ct yellow gold, designed as a seated dog, the hair made of articulated foxtail chain tassels, the eyes se...

HERMES, A VINTAGE COLLAR NECKLACE in 18ct yellow gold, designed as a series of twisting fancy links of graduated size, signed Hermes, French maker...

DAVID WEBB, A PAIR OF BLUE ENAMEL CLIP EARRINGS the bombe earrings decorated with sections of blue enamel, accented by a gold cross motif, signed ...

A FRENCH CHRYSOPRASE AND ROCK CRYSTAL BRACELET in 18ct yellow gold, comprising a row of alternating polished rock crystal links and cabochon chrys...

CARTIER, A PAIR OF CHRYSOPRASE, DIAMOND, ENAMEL AND RUBY BIRD BROOCHES, 1991 in 18ct yellow gold, each designed as a bird set with carved chrysopr...

DAVID WEBB, A DIAMOND RING the band ring accented by geometric segments set with round brilliant cut diamonds, signed Webb, stamped PLAT 18K, size...

VAN CLEEF & ARPELS, A PAIR OF GOLD HOOP EARRINGS in 18ct yellow, white and rose gold, each designed as a hoop with segments of tricolour gold, sig...

MAUBOUSSIN, A DIAMOND CLUSTER RING in platinum, set with a round brilliant cut diamond of approximately 2.91 carats, in a cluster of further round...

AN EMERALD, DIAMOND AND PEARL NEGLIGEE PENDANT NECKLACE the scrolling pendant set with an octagonal step cut emerald accented by old cut diamonds,...

HENRI MARTIN, A PAIR OF COLOMBIAN EMERALD, DIAMOND AND ONYX DROP EARRINGS in 18ct yellow gold, each designed as a bow set with round brilliant, ba...

AN ART DECO RUBY AND DIAMOND BRACELET in platinum, comprising a row of openwork links set with old and single cut diamonds and square step cut rub...

A PAIR OF FRENCH RUBY AND DIAMOND FLOWER EARRINGS in 18ct rose gold, each set with a cluster of old cut diamonds, the petals set with round cut ru...

STEPHEN WEBSTER, A ROCK CRYSTAL, DIAMOND AND PINK HARDSTONE CRYSTAL HAZE RING in 18ct white gold, set with a faceted rock crystal over a pink hard...

POMELLATO, A PAIR OF DIAMOND HOOP EARRINGS each designed as a half hoop set with single cut diamonds, signed Pomellato, stamped 750, 2.0cm, 9.3g. 

BUCCELLATI, A DIAMOND BRACELET comprising two rows of oval chain links, connected by links set with round brilliant cut diamonds, signed M Buccell...

A DIAMOND THREE STONE RING set with three round brilliant cut diamonds, the diamonds all totalling 2.0-2.3 carats, no assay marks, size N / 6.75, ...

A PAIR OF PINK TOURMALINE AND DIAMOND CHANDELIER EARRINGS the scrolling bodies set with round brilliant cut diamonds suspending pear cut pink tour...

HERMES, AN EMERALD DUCK BROOCH in 18ct yellow gold, designed as a flying duck, the eye set with a round cut emerald, signed Hermes Paris and numbe...

TIFFANY & CO., A DIAMOND ATLAS BANGLE, 1995 the hinged bangle with embossed Roman numerals, accented by two rows of round brilliant cut diamonds, ...

CARTIER, A DIAMOND PILLAR RING in 18ct yellow gold, the open band designed as a series of pillars set with round brilliant cut diamonds, the diamo...

CARTIER, A DIAMOND, TSAVORITE GARNET AND ONYX PANTHERE RING in 18ct white gold, designed as a coiled panther, the head pave set with round brillia...

AN ART DECO DIAMOND BROOCH, 1930S designed as an open circle accented by a geometric bow, set throughout with transitional and baguette cut diamon...

AN EMERALD AND DIAMOND BRACELET comprising twelve openwork geometric links, each set with a round cut emerald accented by old and single cut diamo...

A CEYLON NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING in white gold, set with an octagonal step cut sapphire of 13.49 carats in a cluster of round br...

A PAIR OF DIAMOND CLIP BROOCHES each openwork clip in identical design, set throughout with single cut diamonds and accented by baguette cut diamo...

AN ART DECO BLACK OPAL AND DIAMOND RING in platinum, set with an oval cabochon black opal, the shoulders set with baguette cut diamonds, stamped P...

MARCUS, AN ART DECO RUBY AND DIAMOND BAR BROOCH set with transitional cut diamonds and French cut rubies, signed MARCUS, no assay marks, 4.9cm, 4....

A FRENCH DIAMOND ETERNITY RING in 18ct white gold, set all around with a row of round brilliant cut diamonds, French assay marks, size O / 7.25, 1...

A DIAMOND BRACELET comprising a row of twelve geometric links set throughout with round brilliant cut diamonds, the diamonds all totalling 7.0-7.5...

A GEMSET JARDINIERE BROOCH, 1950S in 18ct white gold, modelled as plant in a stemmed pot, set with carved rubies, cabochon sapphires and emeralds ...

DURAND & CO., AN ART DECO SAPPHIRE, CHRYSOPRASE AND DIAMOND RING set with an oval cut sapphire between two rectangular step cut chrysoprase, accen...

AN ART DECO SAPPHIRE AND DIAMOND BROOCH the oval pierced brooch set throughout with rectangular step cut and calibre cut sapphires and old and sin...

AN ART DECO DIAMOND AND SAPPHIRE BELT BRACELET designed as a belt, set with a row of old European cut diamonds, accented by two rows of French cut...

A VINTAGE ONYX AND DIAMOND RING in 18ct white gold, set with a pyramid-shaped onyx accented by polished onyx and a row of round cut diamonds, stam...

A PAIR OF ONYX AND DIAMOND DROP EARRINGS in 18ct white gold, each comprising a row of links set with round brilliant cut diamonds, suspending an o...