YELLOW SAPPHIRE AND DIAMOND RING The cushion-shaped yellow sapphire within a brilliant-cut diamond surround, yellow sapphire approx. 7.15cts, ring...

DIAMOND SINGLE-STONE RING AND BAND 1st: 2005, The princess-cut diamond, mounted in platinum, 2nd: The platinum ring of concave design and polished...

CULTURED PEARL, SAPPHIRE AND TOURMALINE EARRINGS Each pear-shaped sapphire and step-cut pink tourmaline surmount, suspending a 13.9mm and 14.0mm c...

BLUE TOPAZ AND DIAMOND-SET NECKLACE The spherical pendant set with circular-cut blue topaz, suspending two tassels terminating in brilliant-cut di...

DIAMOND CLUSTER RING Set with brilliant-cut diamonds, diamonds approx. 1.70cts total, ring size approx. M For further information on this lot plea...

MORGANITE, AQUAMARINE AND DIAMOND PENDENT EARRINGS Each surmount set with brilliant-cut diamonds, suspending a pear-shaped morganite and aquamarin...

STEPHEN WEBSTER: KUNZITE AND GEM-SET DRESS RING, 2002 The oval-cut kunzite within a surround of brilliant-cut diamonds, the gallery set with scatt...

TANZANITE AND DIAMOND CLUSTER RING The oval-cut tanzanite within a brilliant-cut diamond surround, tanzanite approx. 4.15cts, ring size approx. O ...

DIAMOND PENDENT EARRINGS Designed as a series of brilliant-cut diamond concentric circles, with a central cluster of trilliant-cut diamonds, diam...

BULGARI: DIAMOND-SET 'PARENTESI' PENDANT/NECKLACE Pavé-set with brilliant-cut diamonds, on an 18 carat white gold trace-link chain, pendant and c...

TIFFANY: 'VICTORIA' DIAMOND LINE BRACELET, 2007 Set throughout with brilliant-cut diamonds, the clasp set with marquise-cut diamonds, mounted in p...

DIAMOND BROOCH Of scrolling foliate design, set with brilliant, cushion-shaped and baguette-cut diamonds, diamonds approx. 2.40cts total, length 4...

DIAMOND RING The old brilliant-cut diamond star set within a single and brilliant-cut diamond surround, principal diamond approx. 0.45ct total, re...

AQUAMARINE AND DIAMOND RING, EARLY 20TH CENTURY The oval-cut aquamarine within an old brilliant and single-cut diamond frame, diamonds approx. 0.5...

DIAMOND CLUSTER EARRINGS Each set with a cushion-shaped diamond, within a similarly-cut diamond surround, diamonds approx. 1.65cts total, length 1...

AQUAMARINE AND DIAMOND BROOCH, EARLY-MID 20TH CENTURY The cushion-shaped aquamarine between two old brilliant-cut diamonds, diamonds approx. 0.40c...

DIAMOND-SET DOUBLE CLIP BROOCH, 19TH - 20TH CENTURY Of spray design, set with rose-cut and cushion-shaped diamonds, cushion-shaped diamonds approx...

CULTURED PEARL AND DIAMOND CLASP Set with 4.5-6.8mm cultured pearls and brilliant and baguette-cut diamonds, diamonds approx. 2.70cts total, leng...

DIAMOND BOW BROOCH, MID 20TH CENTURY Set throughout with cushion and single-cut diamonds, diamonds approx. 2.05cts total, length 4.1cm For further...

OPAL AND DIAMOND CLUSTER RING The oval opal cabochon, within a brilliant-cut diamond surround, mounted in 18 carat gold, diamonds approx. 0.85ct t...

DIAMOND FLORAL BROOCH, FIRST HALF OF 20TH CENTURY The flowers, leaves and stems set with old brilliant, cushion and single-cut diamonds, diamonds ...

ENAMEL AND DIAMOND CUFFLINKS Single-sided, each oval plaque with applied single-cut diamond falcon, to a royal blue enamel t-bar fitting, length o...

COLLECTION OF JEWELLERY, LATE 19TH - EARLY 20TH CENTURY 1st: The bar brooch set with a cabochon opal and seed pearls, 2nd: The opalescent polychro...

DIAMOND, RUBY AND SEED PEARL PENDANT/BROOCH Set with seed pearls, rose-cut diamonds, and circular-cut rubies, lengths: pendant/brooch 4.0cm, chain...

MOONSTONE CLOVER BROOCH, MID-LATE 19TH CENTURY The old brilliant-cut diamond issuing heart-shaped moonstone leaves, length 2.1cm For further infor...

AMETHYST RIVIÈRE, EARLY-MID 19TH CENTURY The oval-cut amethysts within floral engraved frames, between three rows of s-link chains, largest ameth...

EMERALD AND DIAMOND RING The octagonal-cut emerald between old brilliant-cut diamonds, the gallery and shoulders of scrolling design, emerald appr...

DIOPTASE EARCLIPS, CIRCA 1970 Each rough crystal within a textured, openwork surround, length 2.2cm For further information on this lot please vis...

THREE GEM-SET BROOCHES 1st: 1960, the 18 carat gold brooch designed as a bee with ruby cabochon set eyes, Chaumet, 2nd: 1965, the textured 9 carat...

CAR CHARM BRACELET, 1962-64 The 9 carat gold bracelet of curb linking design, suspending six car charms, including a 1910 Model T Ford, a Bugatti ...

ENAMEL, RUBY AND DIAMOND ROYAL YACHT SQUADRON BURGEE BROOCHSet throughout with single-cut diamonds and calibré-cut rubies, the crown accented by r...

SAPPHIRE, RUBY, EMERALD AND DIAMOND BRACELET Set with circular-cut emeralds, rubies and sapphires, and brilliant-cut diamonds, diamonds approx. 1....

SPINEL AND DIAMOND RING The oval-cut spinel between pear-shaped and marquise-cut diamond shoulders, spinel approx. 7.30 carats, ring size approx....

TOURMALINE AND DIAMOND RING Set with a step-cut green tourmaline and brilliant-cut diamonds, tourmaline approx. 6.85cts, ring size approx. L½ For...

TWO RUBY AND DIAMOND BRACELETS Each set with oval-cut rubies and brilliant-cut diamond clusters, rubies very approx. 14.50cts total, diamonds appr...

ROSE QUARTZ AND DIAMOND DRESS RING The carved rose quartz plaque, accented with brilliant-cut diamonds, diamonds approx. 0.80ct total, length 4....

CULTURED PEARL AND DIAMOND EARRINGS Each set with a 12.0-12.1mm cultured pearls of black tint, and marquise and brilliant-cut diamonds, diamonds a...

RUBY AND DIAMOND BUTTERFLY BROOCH The openwork wings set with circular and step-cut rubies, and cushion-shaped, rose and old brilliant-cut diamond...

AMETHYST CUFFLINKS Single-sided, the amethyst crystal within a textured abstract surround, length of plaque 3.1cm For further information on this ...

STEPHEN WEBSTER: HAEMATITE AND DIAMOND CHOKER AND BRACELET, 2004 The brilliant-cut diamond buckle between ten rows of faceted haematite beads, to ...

EMERALD AND DIAMOND CLUSTER RING The oval emerald cabochon within a brilliant-cut diamond border, diamonds approx. 2.40cts total, emerald approx. ...

TOURMALINE AND DIAMOND HEART PENDANT The heart-shaped pink tourmaline within a brilliant-cut diamond surround, tourmaline very approx. 27.40cts, d...

SAPPHIRE AND DIAMOND CLUSTER EARRINGS Each set with a circular-cut sapphire within a brilliant-cut diamond surround, diamonds approx. 0.80ct total...

AQUAMARINE AND DIAMOND RING Set with a step-cut aquamarine, within a brilliant-cut diamond gallery, aquamarine approx. 11.20cts, diamonds approx. ...

RUBY AND DIAMOND FLOWER EARRINGS Each set with oval-cut rubies and brilliant-cut diamonds, length 1.4cm For further information on this lot please...

ONYX AND DIAMOND-SET DRESS RING The bombé plaque pavé-set with brilliant-cut diamonds, within an onyx surround, diamonds approx. 0.70ct total, ri...

SAPPHIRE THREE-STONE RING Set with cushion-shaped sapphires, ring size approx. M½ For further information on this lot please visit Bonhams.com ....

CORAL AND DIAMOND RING Set with a coral corallium rubrum cabochon and brilliant-cut diamonds, ring size approx. P Footnotes: This lot will be subj...

BOUCHERON: GOLD BRACELET, 1962 Designed as a series of 18 carat gold overlapping stylised daisy links, signed Boucheron London, London hallmark, l...

CARTIER: GEM-SET GIARDENETTO BROOCH, CIRCA 1990 The cabochon-cut sapphire berries and carved chrysoberyl leaves issuing from the brilliant-cut dia...

DIAMOND HALF-HOOP EARRINGS Each set with princess and baguette-cut diamonds, diamonds approx. 7.65cts total, length 2.3cm For further information ...

TURQUOISE AND DIAMOND BANGLE Of hinged design, the reeded bangle set with turquoise cabochon within single-cut diamond surrounds, diamonds approx....

EMERALD AND DIAMOND CLUSTER RING Set with a step-cut emerald within a marquise-cut diamond surround, emerald approx. 2.45cts, diamonds approx. 2.7...

EMERALD AND DIAMOND BRACELET Set with oval-cut emeralds and brilliant-cut diamonds, emeralds very approx. 16.20cts total, diamonds approx. 1.05cts...

RUBY AND DIAMOND DRESS RING Of crossover design, set with oval-cut rubies within brilliant-cut diamond surrounds, between baguette-cut diamond sho...

ENAMEL AND DIAMOND DRESS STUDS, EARLY 20TH CENTURY Each royal blue enamel plaque framed by rose-cut diamonds, length 1.4cm (5) For further inform...

CARTIER: ART DECO JADE AND DIAMOND LORGNETTE, CIRCA 1925 The jadeite jade stem set with single-cut diamond terminals and a similarly-set collar an...

DIAMOND, ONYX AND CHALCEDONY BROOCH The old brilliant-cut diamond atop a circular chalcedony plaque, between trapeze and square step-cut onyx and ...

DIAMOND BROOCH, EARLY 20TH CENTURY Of openwork geometric design, set with old brilliant, single, baguette and cushion-shaped diamonds, diamonds ap...

DIAMOND AND ONYX PLAQUE RING Set with onyx and cushion-shaped and rose-cut diamonds, principal diamonds approx. 0.55ct total, ring size approx. L ...