diamond

A 1.20 CARAT D COLOUR SOLITAIRE DIAMOND RING in platinum, set east west with an oval brilliant cut diamond of 1.20 carats, partial British hallmar...

THEO FENNELL, A 11.43 CARAT PARAIBA TOURMALINE AND DIAMOND RING in 18ct white gold, set with a cushion cut Paraiba tourmaline of 11.43 carats in a...

BULGARI,  A FINE SAPPHIRE AND DIAMOND TROMBINO RING in 18ct white gold, set with a cushion cut sapphire of 2.79 carats, between rows of baguette c...

A FINE D COLOUR DIAMOND AND COLOMBIAN EMERALD TOI ET MOI RING in platinum, set with an emerald cut diamond of 1.89 carats and an octagonal step cu...

AN ART DECO ROCK CRYSTAL, ONYX AND DIAMOND BROOCH set with an open oval of polished rock crystal, accented by calibre cut onyx and single cut diam...

AN ART DECO KASHMIR SAPPHIRE AND DIAMOND RING in platinum, set with a sugarloaf cabochon sapphire of 4.43 carats, the ornate mount with Greek Key ...

BULGARI, A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of approximately 10.68 carats, accented by marquise cut diamonds...

AN ANTIQUE SAPPHIRE AND DIAMOND FIVE STONE RING in 18ct yellow gold, set with a row of alternating cushion cut sapphires and old cut diamonds, the...

AN ANTIQUE DIAMOND AND ENAMEL SNAKE BROOCH / PENDANT in yellow gold, designed as a coiled snake, the head set with a cluster of rose cut diamonds,...

TIFFANY & CO., A PAIR OF DIAMOND ATLAS EARRINGS, 1995 each in a hoop design with embossed Roman numerals, accented by two rows of round brilliant ...

VAN CLEEF & ARPELS, A LAPIS LAZULI AND DIAMOND RING set with two sections of fluted lapis lazuli, accented by three round brilliant cut diamonds, ...

TIFFANY & CO., A DIAMOND RING pave set with rows of round brilliant cut diamonds, signed Tiffany & Co., stamped IRID.PLAT. 18K, size M1/2 / 6.5, 1...

VAN CLEEF & ARPELS, A CORAL AND DIAMOND BOW RING in 18ct yellow gold, designed as a bow set with two cabochon coral, accented by round brilliant c...

TIFFANY & CO., A DIAMOND CIRCLE BROOCH designed as an open circle set with old cut diamonds, the diamonds all totalling 4.0-4.5 carats, stamped Ti...

AN ANTIQUE RUSSIAN DIAMOND ACORN LOCKET / PENDANT in yellow gold and silver, the pendant designed as an acorn with a cap set with rose cut diamond...

VAN CLEEF & ARPELS, A VINTAGE CORAL AND DIAMOND BROOCH in 18ct yellow gold, the tapering bar set with a cabochon coral accented on each side by an...

CARTIER, A VINTAGE CHRYSOPRASE, ONYX, RUBY AND DIAMOND DRESS RING in 18ct yellow gold, set with a carved chrysoprase accented by polished onyx, st...

JULIUS COHEN, AN AQUAMARINE AND DIAMOND DRESS RING set with an octagonal step cut aquamarine of approximately 27.15 carats accented by round brill...

VAN CLEEF & ARPELS, A DIAMOND LOTUS BETWEEN THE FINGER RING the articulated double ring comprising a lotus flower and two leaves pave set througho...

A YELLOW SAPPHIRE AND DIAMOND RING set with an octagonal mixed cut yellow sapphire of approximately 7.85 carats, the gallery and shoulders set wit...

TIFFANY & CO., A PAIR OF EMERALD AND DIAMOND DROP EARRINGS each comprising a round brilliant cut diamond suspending a tapered baguette cut diamond...

A PAIR OF ANTIQUE DIAMOND, PEARL AND EMERALD FLOWER CLIP BROOCHES in yellow gold and silver, each designed as a flower set to the centre with a pe...

A DIAMOND DRESS RING set with a hexagonal step cut diamond of approximately 1.75 carats, the shoulders set with baguette cut diamonds, stamped 750...

TIFFANY & CO., A DIAMOND AND ENAMEL PANSY BROOCH / PENDANT designed as a pansy decorated with black enamel, set with an old European cut diamond, ...

A PAIR OF DIAMOND DROP EARRINGS each designed as a hoop pave set with round brilliant cut diamonds, suspending an articulated tassel of pear shape...

A DIAMOND NECKLACE comprising a row of alternating foliate and openwork links, set throughout with old European and round brilliant cut diamonds a...

ALEXIS NY, A DIAMOND, EMERALD AND ENAMEL SNAKE RING comprising a row of articulated links decorated with black enamel, the head and tail set with ...

CARTIER, A PAIR OF DIAMOND CLIP EARRINGS in 18ct yellow gold, each set with a round brilliant cut diamond, signed Cartier, stamped 750, French imp...

VAN CLEEF & ARPELS, A DIAMOND RING in 18ct white gold, pave set with three rows of round brilliant cut diamonds, the diamonds all totalling 1.0-1....

A BLACK OPAL AND DIAMOND RING set with a cabochon black opal of approximately 19.89 carats in a stylised mount accented by round brilliant cut dia...

VAN CLEEF & ARPELS, A DIAMOND AND MULTIGEM RING in 18ct yellow gold, comprising a row of alternating round cut sapphires, rubies and emeralds, acc...

A CONCH PEARL AND DIAMOND PENDANT NECKLACE the pendant set with a conch pearl of approximately 7.5mm in a frame of rose cut diamonds, suspended fr...

PALOMA PICASSO FOR TIFFANY & CO., A DIAMOND NECKLACE, 1980 comprising rows of fancy link chain, accented by caps set with round brilliant cut diam...

CARTIER, AN ART DECO DIAMOND BRACELET in platinum, comprising a row of five openwork geometric links, set throughout with old, old European and si...

A DIAMOND NECKLACE comprising a row of hexagonal links set with round brilliant cut diamonds, punctuated by further diamonds, the diamonds all tot...

TIFFANY & CO., A SAPPHIRE AND DIAMOND BRACELET comprising a row of rectangular step cut sapphires accented by two rows of single cut diamonds, sig...

A CONVERTIBLE SAPPHIRE AND DIAMOND NECKLACE / PAIR OF CLIP BROOCHES comprising five rows of polished sapphire beads, accented by two detachable op...

AN ANTIQUE FRENCH DIAMOND BRACELET in 18ct yellow gold and silver, comprising a row of scrolling openwork links set with old and rose cut diamonds...

A PAIR OF INDICOLITE TOURMALINE AND DIAMOND DROP EARRINGS each comprising an inverted pear cut diamond, suspending a pear cut indicolite tourmalin...

AN ANTIQUE CORAL AND DIAMOND PENDANT NECKLACE, EARLY 20TH CENTURY in platinum, the pendant designed as a series of bow motifs set with single cut ...

CARTIER, A DIAMOND BAR BROOCH in platinum and yellow gold, set to the centre with an old step cut diamond accented by a row of carre cut diamonds,...

A PAIR OF EMERALD AND DIAMOND DROP EARRINGS each comprising a row of round cut emeralds in borders of round brilliant cut diamonds, the emeralds a...

A PAIR OF PEARL AND DIAMOND DROP EARRINGS each set with a pearl accented by single cut diamonds, suspending a South Sea pearl drop of 14.9mm and 1...

AN EMERALD AND DIAMOND BRACELET the openwork bracelet set throughout with round brilliant cut diamonds, accented by trios of step cut emeralds, th...

AN ANTIQUE DIAMOND CLIP BROOCH in yellow gold and silver, set with a row of four rose cut diamonds, suspending a pear shaped rose cut diamond drop...

A DIAMOND BROOCH designed as a parallelogram set to the centre with a transitional cut diamond of approximately 0.57 carats, accented by three row...

BULGARI, A PEARL AND DIAMOND CUFF BRACELET set with five pearls accented by pave set round brilliant cut diamonds, signed Bulgari, stamped 750, in...

A DIAMOND PLAQUE BROOCH the openwork brooch set throughout with transitional and single cut diamonds, the diamonds all totalling 4.0-5.0 carats, n...

A FRENCH DIAMOND PLAQUE  BROOCH in platinum, the openwork geometric brooch set to the centre with a transitional cut diamond of approximately 0.80...

AN UNHEATED RUBY AND DIAMOND RING set with a pear cut ruby of 3.01 carats accented by round brilliant cut diamonds, the diamonds all totalling 1.1...

AN ANTIQUE FRENCH EMERALD AND DIAMOND PENDANT in 18ct yellow gold and silver, set with a cabochon emerald in a foliate border set with old and ros...

A GARNET AND DIAMOND THREE STONE RING set with a cushion cut garnet of 2.35 carats accented on each side by a baguette cut diamond, inscribed 2.35...

A DIAMOND SAUTOIR CHAIN NECKLACE comprising a trace chain set with round cut diamonds, the diamonds all totalling 10.0-12.0 carats, stamped 750, 1...

M. GERARD, A TURQUOISE, PEARL AND DIAMOND NECKLACE AND EARRINGS SUITE in 18ct yellow gold, the necklace comprising a single row of pearls, the cla...

CHIMENTO, A ROSE QUARTZ AND DIAMOND DRESS RING set with a fancy cut rose quartz accented by round brilliant cut diamonds, signed Chimento and numb...

AN EMERALD, DIAMOND, SAPPHIRE, RUBY AND PLIQUE A JOUR ENAMEL DRAGONFLY BROOCH the tail set with a row of octagonal step cut emeralds accented by s...

SUZANNE BELPERRON, AN AQUAMARINE, RUBY AND DIAMOND BROOCH, 1955-1970 in 18ct yellow gold, set with an octagonal step cut aquamarine of approximate...

A STAR SAPPHIRE AND DIAMOND PENDANT set with a round cabochon star sapphire of 39.82 carats in a border of round brilliant cut diamonds, the bail ...

BULGARI, A FINE VINTAGE DIAMOND BROOCH the scrolling brooch set throughout with round brilliant and baguette cut diamonds, the diamonds all totall...

A TURQUOISE, AMETHYST AND DIAMOND NECKLACE AND EARRINGS SUITE the necklace set with a row of graduating cabochon turquoise in borders of round cut...