Cartier: Diamond 'Double-C' ring and 'Love' ring1st: The tricoloured gold band with single-cut diamond 'C' terminals, 2nd: With screwhead motifs a...

Bulgari: gem-set 'Lucea' necklace, by BulgariThe articulated panel of square buff-top garnets, suspending a fringe of circular and oval-shaped lin...

Diamond dress ringOf domed form, pavé-set to the front with brilliant-cut diamonds, diamonds approx. 1.70cts total, ring size approx. LFor further...

Bulgari: Gem-set torc bangleOf ropetwist design with cabochon amethyst and citrine terminals, accented by brilliant-cut diamonds, signed Bulgari, ...

Cartier: Pair of rings,Each polished hoop fitting together along the undulating edges, both signed Cartier, numbered 104749, ring sizes approx. J ...

Carrera y Carrera: diamond pendant necklaceThe openwork foliate cross accented by brilliant-cut diamonds of brown tint, to a cable-link chain, sig...

Cartier: Lapis lazuli and diamond earhoopsEach set with a panel of lapis lazuli and brilliant-cut diamonds, signed Cartier Paris, numbered R8981 o...

Cartier: Lapis lazuli and diamond bombé ringThe lapis lazuli panel with an applied single-cut diamond double 'C', signed Cartier, numbered 49866, ...

Chanel: cultured pearl watch, 1989The square dial with Roman numerals, to a five row 4.3mm cultured pearl strap, mounted in 18 carat yellow gold, ...

de Grisogono: a fancy coloured diamond and diamond dress ringOf bombé form, the applied vine motif pavé-set with brilliant-cut diamonds of brown t...

Late 19th century gem-set pendant necklaceThe heart-shaped cabochon moonstone and old-brilliant-cut diamond cluster suspending an articulated simi...

Cartier: Seed pearl and diamond brooch, circa 1910Of openwork design, set with seed pearls and rose-cut diamonds, mounted in platinum, signed Cart...

Ruby and diamond target ringSet with a brilliant-cut diamond within octagonal borders of French-cut rubies, the shoulders set with brilliant-cut d...

Collection of early 20th century jewellery1st: The hinged bangle of pierced geometric design, set to the front with old brilliant and rose-cut dia...

Enamel and seed pearl flower brooch, circa 1900The pearlescent enamel petals with a central seed pearl cluster, mounted in gold, length 3.3cmFor f...

Early 20th century emerald and diamond ringSet with a cushion-shaped emerald, with a pear-shaped diamond to one side and an old brilliant and a si...

Diamond plaque broochSet with old brilliant and rose-cut diamonds, old brilliant-cut diamonds approx. 1.35cts, length 4.6cmFor further information...

A diamond cluster ringThe old brilliant-cut diamond of yellow tint within a brilliant-cut diamond surround, principal diamond approx. 1.20cts, rem...

Diamond plaque brooch, circa 1930Set throughout with old brilliant-cut diamonds, length 6.5cmFor further information on this lot please visit Bonh...

Diamond dress ringThe oval knifewire plaque set with three old brilliant-cut diamonds, the surround set with similarly-cut diamonds, between singl...

Single-strand seed pearl and natural pearl necklaceThe 3.00mm-5.0mm natural pearls and seed pearls with a diamond-set clasp, Swedish assay mark, l...

Geoffrey Rowlandson: diamond novelty cufflinks, 2006Single-sided: Each brilliant-cut diamond fish with a circular cabochon sapphire eye, mounted i...

Diamond half-eternity ringSet to the front with brilliant-cut diamonds, diamonds approx. 1.00ct total, ring size approx. OFor further information ...

Aquamarine and diamond necklaceDesigned as a series of graduated oval-cut aquamarines and brilliant-cut diamond clusters, diamonds approx. 4.60cts...

Diamond five-stone ring,The textured hoop set to the front with a series of brilliant-cut diamonds, diamonds approx. 1.50cts total, ring size appr...

Gem-set butterfly broochThe wings formed from carved agate, to an oval cabochon tourmaline thorax and brilliant-cut diamond abdomen, issuing circu...

Diamond bombé earringsPavé-set with brilliant-cut diamonds, diamonds approx. 1.00ct total, length 0.9cmFor further information on this lot please ...

Topaz and diamond necklaceSet to the front with a series of oval-cut blue topaz between collet-set brilliant-cut diamonds, to a cable-link chain, ...

Diamond ringChannel-set with a brilliant-cut diamond, between bombé shoulders of similarly-cut diamonds, principal diamond very approx. 0.60ct tot...

A rose quartz dress ring and earring suite, by carrera y carreraThe rectangular rose-cut rose quartz to a mount designed as openwork trailing rose...

Cartier: diamond necklaceThe flattened curb-link chain to a brilliant-cut diamond buckle centrepiece, signed Cartier, numbered 600733, maker's mar...

Hemmerle: sapphire ringSet with an oval mixed-cut sapphire, maker's marks GH, ring size approx. I, maker's caseFor further information on this lot...

Bulgari: gem-set bead necklaceFormed as a single strand of 3.0mm pearls, lapis lazuli and emerald beads, signed Bulgari, length 45.8cmFor further ...

Diamond and rock crystal pendent earringsEach heart-shaped carved and fluted rock crystal suspending a similar rock crystal drop via a brilliant-c...

Yellow sapphire dress ringOf undulating bombé design, the front pavé-set with circular-cut yellow sapphires, ring size approx. QFor further inform...

Hermès: fancy-link collarDesigned as bicoloured fancy-links, signed HERMES, French assay mark, maker's mark, length 37.2cmFor further information ...

Tamara Comolli: gem-set 'Mikado Bouquet' pendantsThe three acorn pendants set with rutilated quartz, peridot and citrine sugarloaf cabochons, resp...

Diamond ringOf bicoloured 18 carat gold design, set with a brilliant-cut diamond, diamond approx. 0.50ct total, UK hallmark, ring size approx. KFo...

Diamond ringSet with an oval-cut diamond with a surround of brilliant-cut diamonds, the shoulders similarly-set, diamonds approx. 1.10cts total, r...

Tiffany: Onyx, seed pearl and diamond bangleThe onyx cuff with seed pearl and diamond studs, inner diameters 5.6cm x 4.2cm, maker's case (damaged)...

Diamond cluster earstudsEach set with marquise and princess-cut diamonds, diamonds approach. 2.00cts totalFor further information on this lot plea...

Cultured pearl, ruby and diamond braceletThe 5.0mm cultured pearls alternating with graduations of ruby bead spacers, set to the front with brilli...

Ruby and diamond pendant and earring suiteThe circular-cut ruby issuing radiating courses of calibré-cut rubies, brilliant and single-cut diamonds...

Emerald and diamond cluster ring, circa 1960The cushion-shaped emerald within a surround of brilliant and marquise-cut diamonds, emerald approx. 3...

Cartier: a diamond ringThe princess-cut diamond weighing 1.07 carats, mounted in platinum, signed Cartier, maker's mark JC, London hallmark, ring ...

Pink tourmaline and diamond dress ringThe oval-cut pink tourmaline within an undulating baguette-cut diamond surround, diamonds approx. 3.00cts to...

Cultured pearl and diamond pendant, ring and pendent earring suiteThe 12.0mm cultured pearl within a brilliant-cut diamond surround, suspended fro...

Ruby and diamond cluster ringThe oval-cut ruby within a surround of brilliant-cut diamonds, ring size approx. QFootnotes:Accompanied by a report ...

Diamond eternity ringUniform series of brilliant-cut diamonds, diamonds approx. 1.90cts total, ring size very approx. H (sizing beads)For further ...

Pair of diamond earstudsEach set with a brilliant-cut diamond, weighing 0.96 carats totalFor further information on this lot please visit Bonhams....

Pair of gem-set spray brooches, circa 1945Each spray set with old brilliant, rose and briolette-cut diamonds, accented by oval ruby cabochons and ...

Diamond cocktail watch, circa 1940Square dial with Arabic numerals with a single and baguette-cut diamond bezel, between single-cut diamond lugs o...

Chrysoprase bracelet, circa 1940Alternating with chrysoprase discs and sugarloaf cabochons, length 20.0cmFor further information on this lot pleas...

Van Cleef & Arpels: cigarette case, circa 1950Of basketweave decoration, signed Van Cleef & Arpels, numbered, maker's mark, French assay marks, d...

Ruby cufflinks, circa 1940Double-sided: Each openwork terminal accented by a circular ruby cabochon, maker's mark MA, French assay marks for Marce...

Sannit and Stein: pair of ruby and diamond earclips, 1958Each tiered flowerhead accented by a circular-cut ruby and brilliant-cut diamond cluster,...

Cartier: pair of sapphire cufflinksDouble-sided: Each hinged terminal with an engraved cross and crown motif, accented by a sapphire sugarloaf cab...

Ruby and diamond flower brooch, circa 1955The engraved petals accented by a tiered cluster of circular-cut rubies, baguette and brilliant-cut diam...

Collar necklaceFormed from bicoloured panels, inner diameters 12.3cm x 12.0cmFor further information on this lot please visit Bonhams.com ...[mor...

Opal and diamond cluster ringThe oval opal cabochon within a brilliant-cut diamond surround, ring size approx. SFor further information on this lo...