Sapphire and diamond cluster ringThe oval-cut sapphire, weighing 3.87 carats, within an old brilliant-cut diamond surround, diamonds approx. 1.50...

Sapphire and diamond ringThe oval-cut sapphire between trapezoid-cut diamond shoulders, sapphire approx. 5.40cts, ring size NFootnotes:Accompani...

Ruby and diamond bracelet and pendant suiteEach curved link formed of stepped rows set with calibré-cut rubies, similarly-cut and brilliant-cut di...

gem-set dress ringThe oval-cut emerald within an undulating surround set with brilliant-cut diamonds and calibré-cut rubies, diamonds approx. 0.55...

Pendant and brooch suiteEach fringed cartouche of wirework and filigree design, the pendant suspended from a woven chain, lengths: pendant 9.6cm, ...

Neo-Renaissance enamel pendant, Austro-Hungarian, late 19th centuryDepicting Saint George slaying the dragon and decorated on both sides with poly...

Enamel and diamond bracelet, circa 1840Of scrolling rocaille and repoussé form, decorated throughout with blue and white enamel and panels of poly...

Amethyst necklaceDesigned as a series of scrollwork links, each set with an oval-cut amethyst, to a fancy-link back chain, length 42.3cmFor furthe...

Diamond five-stone ringSet with a graduated row of old brilliant-cut diamonds, the gallery carved and scrolled, old brilliant-cut diamonds approx....

Gem-set cameo and intaglio bracelet, 18th century and earlierThe central oval hardstone cameo, 17th-18th century, of a reclining semi-nude maiden,...

Agate portrait intaglio, by William Barnett, late 18th centuryOval, depicting the profile of Dr Samuel Johnson (1709-1784), facing right, in a lat...

Diamond Maltese cross brooch/pendant, 19th centurySet throughout with old brilliant and rose-cut diamonds, mounted in silver and gold, diamonds ap...

Opal and diamond ring, early 20th centuryThe three oval opal cabochons millegrain-set within a surround of single-cut diamonds, mounted in platinu...

Opal and diamond cluster ringThe oval shaped opal in a surround of single-cut diamonds, ring size R 1/2For further information on this lot please ...

Emerald and diamond pendent earringsSet with an articulated row of alternating step-cut emeralds and diamonds, with single-cut diamond accents, di...

Diamond bombé ringSet throughout with brilliant-cut diamonds, diamonds approx 3.70cts total, ring size K½For further information on this lot pleas...

Diamond cluster earringsEach set with brilliant-cut diamonds, diamonds approx. 2.75cts total, width 1.3cmFor further information on this lot pleas...

Diamond braceletInterweaving at the front and set throughout with graduations of baguette and marquise-cut diamonds, diamonds approx 19.50cts tota...

Emerald and diamond cluster ringThe step-cut emerald within a surround of brilliant-cut diamonds, ring size MFor further information on this lot ...

Emerald and diamond ringSet with a step-cut emerald between trilliant-cut diamond shoulders, ring size LFootnotes:Accompanied by a report from GCS...

Cultured pearl necklaceThe cultured pearls of various tints, measuring approximately 12.5mm, with a pierced spherical clasp, length 95.0cmThis lo...

Diamond earringsSet throughout with brilliant-cut diamonds, diamonds approx 2.30cts total, length 2.50cmFor further information on this lot please...

Diamond single-stone ringThe cushion-shaped diamond weighing 5.40 carats, ring size SFor further information on this lot please visit Bonhams.com ...

Emerald, diamond and seed pearl necklaceThe cushion-shaped and rose-cut diamond pendant accented by step-cut emeralds, to a vari-cut diamond and c...

Diamond eternity ringSet throughout with brilliant-cut diamonds, diamonds approx. 2.00cts total, ring size NFor further information on this lot pl...

Cartier: 'Maillon Panthère' necklaceDesigned as a series of 18 carat yellow gold brick-links, signed Cartier, numbered, maker's mark, French assay...

diamond and enamel novelty brooch, circa 1970The stylised rabbit with single-cut diamond ears and eyes, wearing a polychrome enamel and single-cut...

Pink sapphire and diamond cluster ringThe cushion-shaped sapphire, weighing 2.08 carats, within a double surround of brilliant-cut diamonds and ci...

Boodles: Pair of diamond-set 'Blossom' earringsEach 18 carat rose gold hoop suspending a trio of pierced flowerheads, accented to the back with a ...

Onyx cigarette case, Portuguese, mid 20th centuryThe engine-turned case with an onyx thumbpiece, opening to reveal an engine-turned cigarette 'str...

Tiffany: diamond, emerald, ruby and sapphire braceletSet with cabochon sapphires, emeralds and rubies and a brilliant-cut diamond, signed Tiffany ...

Four gem-set rings and earrings1st: The star-sapphire cabochon between brilliant-cut diamond shoulders, 2nd: The moonstone cabochon within a circu...

Synthetic ruby and diamond brooch, circa 1950The bicoloured floral spray with brilliant and rose-cut diamond flowerheads and circular-cut syntheti...

Sapphire and diamond cluster ringThe oval-cut sapphire within a double openwork surround of brilliant and old brilliant-cut diamonds, diamonds app...

Sapphire and diamond ringThe cushion-cut sapphire within a pierced mount, set throughout with single-cut diamonds, maker's mark WR, ring size K½Fo...

Graff: coloured diamond padlock charm pendantSet with brilliant-cut diamonds of yellow, pink and near-colourless tints, weighing 4.55 carats total...

Graff: sapphire and diamond 'Halo' pendantSet with a brilliant cut diamond, weighing 0.14 carat, and circular-cut sapphires, weighing 2.05 carats ...

Graff: pair of sapphire and diamond 'Halo' earringsSet with brilliant-cut diamonds, weighing 0.51 carat total, and circular-cut sapphires, weighin...

Graff: pair of diamond drop earringsSet with brilliant-cut diamonds, weighing 2.90 carats total, mounted in 18 carat white gold, signed Graff, mak...

Graff: Pair of Diamond 'Circle' earringsSet throughout with brilliant-cut diamonds, the two principal stones, weighing 1.00 and 1.01 carats, remai...

An unmounted old brilliant-cut diamondWeighing 3.40 caratsThis lot is subject to the following lot symbols: †† VAT at the prevailing rate on Hamme...

An unmounted old brilliant-cut diamondWeighing 2.88 caratsThis lot is subject to the following lot symbols: †† VAT at the prevailing rate on Hamme...

An unmounted old brilliant-cut diamondWeighing 4.25 caratsThis lot is subject to the following lot symbols: †† VAT at the prevailing rate on Hamme...

An unmounted old brilliant-cut diamondWeighing 3.08 caratsThis lot is subject to the following lot symbols: †† VAT at the prevailing rate on Hamme...

Roger M. King: Gold bracelet, 1965The textured 18 carat gold strap of fold over design with a concealed clasp, maker's mark, UK hallmark, length...

Gem-set longchainThe fancy-link chain suspending a foliate pendant collet-set with gem-set highlights, to include ruby, emerald, etc., length 48cm...

Emerald and diamond ringThe step-cut emerald between hemispherical shoulders set with brilliant-cut diamonds, ring size LFor further information o...

Sapphire and diamond ringOf bicoloured design, set with two oval-cut sapphires between tapering shoulders of step-cut sapphires and brilliant-cut ...

South Indian seed pearl and gem-set fringe necklace, 19th centuryThe chain of geometric beads suspending floral motifs of foiled red stones and ro...

Cultured pearl necklaceThe five strands of cultured pearls to a barrel-shaped clasp with lozenge decoration, length 39.0cmFor further information...

Diamond dress ringSet with a step-cut diamond, weighing 2.11 carats, within a bombé mount set with brilliant, baguette and tapered baguette-cut di...

Ruby and diamond earringsThe oval-cut rubies framed by surrounds of brilliant-cut diamonds, diamonds approx. 4.00cts total, length 1.8cmFootnotes:...

Sapphire and diamond cluster ringThe oval-cut sapphire within a brilliant-cut diamond surround, diamonds approx. 0.95ct total, Polish assay marks,...

Diamond pendent earrings, early 20th centurySet with an articulated row of old brilliant-cut diamonds, mounted in platinum, principal diamonds app...

Diamond and pearl pendant, circa 1890The lozenge-shaped pendant with foliate detailing and set throughout with old brilliant-cut diamonds, suspend...

Diamond plaque ring, circa 1910The knifewire lattice set with old brilliant-cut diamonds accented by rose-cut diamonds, between rose-cut diamond s...

Natural pearl necklaceThe single-strand of seed pearls and 3.0mm - 7.0mm natural pearls to a single-cut diamond and 4.0mm pearl clasp, length 39.2...

Sapphire and diamond bangle, circa 1890The hinged knifewire bangle set with three rows of rose-diamonds, the middle row with a cabochon sapphire a...

Natural pearl and diamond brooch, late 19th centurySet to the centre with a natural pearl and accented throughout with cushion-shaped diamonds, mo...

Diamond bracelet and brooch suiteOf stylised foliate design, set throughout with rose-cut diamonds, formerly convertible, circa 1900 composite, l...