Chopard: Sapphire and Diamond RingOf bombé design, set with a rose-cut sapphire, brilliant-cut diamonds and treated black diamond hearts, diamonds...

Cultured pearl and diamond pendant necklace and cultured pearl and diamond ringThe 12.0mm cultured pearl within a double surround of brilliant-cut...

Diamond cluster ringSet with a cushion-shaped diamond weighing 3.05cts, the surround, collet and shoulders set with brilliant-cut diamonds, mounte...

Diamond earstudsEach set with a brilliant-cut diamond weighing 1.48 carats and 1.55 carats, mounted in 18 carat white gold, UK hallmarksFor furthe...

Gem-set braceletSet with step-cut emeralds, sapphires and brilliant-cut diamonds in a geometric formation, length 17.6cmFor further information on...

Cartier: Diamond Cufflinkswith brilliant-cut diamonds, mounted on 18 carat yellow gold, London hallmarks, maker's mark JC, length 1.90cmFor furthe...

Chalcedony cufflinks, mid-20th centuryDouble-sided: Each set with a sugarloaf chalcedony cabochon, French assay marks, plaque length 1.0cmFor furt...

Emerald and diamond necklace, ring and earring suiteOf twisted design, channel-set to the front with step-cut emeralds, baguette and tapered bague...

Coral and diamond brooch/pendant, earclip and ring suiteThe oval coral corallium rubrum cabochon within a brilliant-cut diamond surround, earclips...

Diamond bracelet, and diamond bar brooch, circa 19151st: The sprung-link bracelet set to the front with brilliant-cut diamonds, 2nd: Millegrain-se...

Two diamond eternity rings and a diamond ring1st and 2nd: Set with brilliant-cut diamonds, 3rd: Set with brilliant-cut diamonds, with nephrite jad...

Diamond single-stone ring, 1996Set with a cushion-shaped diamond, mounted in platinum, diamond approx. 1.40cts total, London hallmark, ring size a...

Diamond eternity ringSet with old brilliant-cut diamonds, ring size approx. MFor further information on this lot please visit Bonhams.com ...[mor...

Sapphire and diamond longchainThe cable-link chain alternately spectacle-set at intervals with step-cut sapphires and brilliant-cut diamonds, diam...

Sapphire and diamond bracelet, early 20th centuryThe series of old brilliant-cut diamond, cushion-shaped and oval-cut sapphire links, to an expand...

Onyx and diamond cufflinks, circa 1920Double-sided: Each circular onyx plaque set with two rows of rose-cut diamonds, French assay mark (indistinc...

Diamond plaque ring, early 20th centurySet with three old brilliant-cut diamonds, the gallery and shoulders of pierced design, principal diamond a...

Rock crystal and diamond pendant and chainThe graduated series of octagonal rock crystal plaques each accented by an old brilliant-cut diamond, wi...

Jade dress ringThe oval jade cabochon between shoulders of floral design, ring size approx. NFootnotes:Accompanied by a report from GCS stating th...

Cultured pearl, chrysoprase and diamond necklace and earring suite, and chrysoprase and diamond bangle1st: The oval chrysoprase cabochon within a ...

Diamond three-stone ring, 1996Set throughout with brilliant-cut diamonds, the gallery of scrollwork design, mounted in 18 carat yellow gold, diamo...

Single diamond earstudCollet-set with a brilliant-cut diamond, diamond approx. 1.50ctsFor further information on this lot please visit Bonhams.com...

A hematite and diamond collarThe tubular panel accented by pavé-set brilliant-cut diamonds, to a nine-strand 4.5mm-5.0mm hematite bead collar, dia...

Four unmounted diamondsEach baguette-cut diamond weighing 0.60 carat, 0.61 carat, 0.66 carat and 0.66 carat, (4)This lot is subject to the followi...

Hardstone and coloured diamond frameThe rectangular frame carved to depict floral and foliate motifs, with two applied polished flowers set with b...

Diamond openwork dress ringSet with brilliant-cut diamonds and a marquise-cut diamond, principal diamond approx. 0.90ct, remaining diamonds approx...

Gem-set serpent braceletOf spring tricoloured design, the head set with a circular-cut sapphire and single-cut diamonds, the eyes accented by circ...

Opal and diamond ringSet with a pear-shaped opal, between brilliant-cut diamond shoulders, ring size approx. P½For further information on this lot...

Cultured pearl necklace with a diamond claspThe 8.5mm cultured pearls, to an openwork clasp set with baguette, brilliant and marquise-cut diamonds...

Turquoise and diamond cluster ring and earclip suite and turquoise and diamond cluster earrings1st: Set with an oval turquoise cabochon and brilli...

Bunda: Diamond cluster ring,Set with a brilliant-cut diamond within a surround of marquise-cut diamonds, diamonds approx. 1.70cts total, signed Bu...

Natural pearl and diamond broochSet with two 8.7mm - 9.8mm x 12.4mm or 7.8mm - 9.2mm x 12.3mm natural pearls within an old brilliant and single-cu...

Asprey: Emerald and diamond brooch, 1978Designed as a cluster of circular-cut and pear-shaped emeralds within a surround of brilliant and marquise...

Diamond spray broochSet throughout with marquise and brilliant-cut diamonds, diamonds approx. 15.25cts total, length 7.7cmFor further information...

Diamond ballerina ringThe brilliant-cut diamond cluster in an undulating tapered baguette-cut diamond surround, diamonds approx. 4.30cts total, on...

Tournon: diamond ringThe bicoloured mount set throughout with brilliant-cut diamonds, ring size approx. K (hoop off round)For further information ...

Fancy-link bracelet, circa 1940Designed as a series of sculptural bicoloured links, with maker's mark MR, possibly Max Rakower, French assay marks...

Green beryl and diamond ringThe step-cut green beryl with brilliant-cut diamond details, mounted in 18 carat yellow and white gold, UK hallmark, s...

Pair of earrings, 2nd half of the 20th centuryEach composed of two layers of polished or textured panels, French import marks, length 5.0cmFor fur...

DeLaneau: Gem-set watch, circa 1970The hexagonal coral corallium rubrum dial within a ropetwist surround, accented by coral corallium rubrum and p...

Diamond buckle braceletThe fancy-link strap accented by brilliant-cut diamonds, length 20.5cmFor further information on this lot please visit Bonh...

Fancy-link bracelet, circa 1960Designed as a series of textured and polished links, some raised to form a zigzag, French assay marks, numbered AF....

Boucheron: gem-set flower brooch, circa 1960Of radiating design, accented by circular-cut rubies, emeralds and sapphires and a brilliant-cut diamo...

Cartier: diamond leaf earclips, circa 1950Each of openwork design, set with three old brilliant-cut diamonds, signed Cartier London, numbered ll51...

Coral pendant and pendent earring suiteThe coral corallium rubrum carved to depict the bust of a lady between putti with floral detail, the earrin...

Gold portrait miniature ring, 1894The enamel miniature of William Shakespeare within a ropetwist surround, the shoulders engraved with foliate det...

Ruby and diamond pendant, circa 1900The hinged locket set with calibré-cut rubies and rose-cut diamonds in a floral basket motif, French assay mar...

A natural and cultured pearl necklaceThe 2.8mm - 5.8mm pearls to a rose-cut diamond clasp, length 51.3cmFootnotes:Accompanied by a report from GCS...

Pink sapphire and diamond five-stone ringAlternately-set with cushion-shaped pink sapphires and diamonds, the gallery of scrollwork design, diamon...

Diamond cufflinks, early 20th centuryDouble-sided: Each circular foliate plaque accented by an old brilliant-cut diamond, mounted in gold, plaque ...

Turquoise and seed pearl brooch, 19th centuryOf scrolling foliate design set with cabochon turquoise and seed pearls, suspending a box-link swag, ...

A tourmaline and diamond ringThe oval-cut red tourmaline between brilliant-cut diamond shoulders, diamonds approx. 0.25ct total, ring size approx....

Tiffany: braceletDesigned as a curb-link chain, signed T&Co., accompanied extra links, length 20.0cm, maker's pouch (2)For further information on ...

Aquamarine, rock Crystal and diamond ringThe oval-cut aquamarine, between bombé rock crystal plaques, accented by rows of brilliant-cut diamonds, ...

Ruby and diamond pendent earclipsEach designed as a cascade of textured triangular plaques set with oval cabochon rubies and brilliant-cut diamond...

Hermès: braceletDesigned as an anchor-link chain, signed Hermès, length 22.6cmFor further information on this lot please visit Bonhams.com ...[mo...

Diamond single-stone ringSet with a brilliant-cut diamond weighing 1.50 carats, mounted in platinum, UK hallmark, ring size approx. JFor further i...

Black diamond and diamond crossover ring and diamond ring1st: Pavé-set with circular-cut treated black diamonds and brilliant-cut diamonds, 2nd: D...

Aquamarine and diamond ringOf wave design set with alternating baguette-cut aquamarines and brilliant-cut diamonds, size approx. N (leading edge)...

Tabbah: CufflinksSingle-sided: Each rectangular polished and textured plaque to a t-bar terminal, signed N. Tabbah, plaque length 2.0cmFor further...