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...

Jaeger LeCoultre: Bracelet/watch, mid 20th centuryThe fancy-link bracelet with a concealed watch to the centre, dial signed Jaeger LeCoultre, cas...

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...

Natural pearl necklaceThe single-strand of 3.3mm - 6.7mm natural pearls to a half-pearl clasp, length 46.6cmFootnotes:Accompanied by a report from...

Diamond trefoil brooch, circa 1890Set throughout with brilliant and single-cut diamonds, mounted in silver and gold, diamonds approx. 4.70cts tota...

Graff: diamond necklaceSet with a double row of brilliant-cut diamonds, signed Graff, numbered 3672, diamonds approx 20.30cts total, length 37.0cm...

Diamond earstudsEach set with a brilliant-cut diamond, diamonds approx. 2.0cts totalFor further information on this lot please visit Bonhams.com ...

Diamond chain, 2006, and diamond pendant, 2007, by Theo FennellThe brilliant-cut diamond serpent with circular-cut ruby eyes, coiling through the ...

Graff: ruby and diamond 'Rosette' pendantSet with brilliant-cut diamonds, weighing 0.83 carat total, and clusters of circular-cut rubies, weighing...

Graff: pair of ruby and diamond 'Rosette' earringsEach cluster drop set with circular-cut rubies, weighing 5.20 carats total, and brilliant-cut di...

Graff: ruby and diamond 'Wave' ringCircular, set with circular-cut rubies, weighing 2.30 carats total, and brilliant-cut diamonds, weighing 2.37 c...

Graff: ruby and diamond Flame pendantThe circular-cut ruby, weighing 0.52 carat, within a surround of brilliant-cut diamonds, weighing 0.44 carat ...

Coloured diamond ringThe step-cut diamond, weighing 5.56 carats, of brown tint, between graduating step-cut diamond shoulders, ring size MFootnote...

demantoid garnet ringSet with an oval-shaped demantoid garnet, weighing 5.51 carats, ring size N½Footnotes:Accompanied by a report from MSU Gemolo...

Tanzanite and diamond ringThe oval-cut tanzanite between brilliant-cut diamonds, diamonds approx. 0.60ct total, ring size PFor further information...

Diamond cluster ringThe brilliant-cut diamond within a scalloped surround set with single-cut diamonds, principal diamond approx. 1.15cts, ring si...

Diamond cocktail watch, mid 20th centuryThe oval dial with Arabic numerals, on a tapering strap of old brilliant, brilliant and single-cut diamond...

Emerald and diamond necklaceThe front with foliate clusters set with pear-shaped emeralds and single-cut diamonds, the backchain formed of links s...

Emerald and diamond cluster ringThe step-cut emerald within a scalloped surround of brilliant-cut diamonds, mounted in 18 carat white gold, diamon...

Emerald and diamond cluster ringThe cushion-shaped emerald within a scalloped surround of brilliant-cut diamonds, ring size PFor further informati...

Geoffrey Rowlandson: Tourmaline and diamond ring and earring suiteThe oval chequerboard-cut pink tourmaline, weighing 11.31 carats, between prince...

Aquamarine and diamond cluster ringThe checkerboard-cut aquamarine within an old brilliant-cut diamond surround, mounted in 18ct white gold, diamo...

Graff: Pair of Ruby and diamond cluster earringsSet with circular-cut rubies, weighing 0.36 carat total, and brilliant-cut diamonds, weighing 0.49...

Graff: Ruby and diamond cluster pendantThe circular-cut ruby, weighing 0.19 carat, within a border of brilliant-cut diamonds, weighing 0.35 carat ...

Graff: Ruby and diamond cluster ringSet with circular-cut rubies, weighing 0.72 carat total, and brilliant-cut diamonds, weighing 1.12 carats tota...

Emerald ring and diamond cluster ringThe octagonal step-cut emerald, weighing 15.00 carats, within a brilliant-cut diamond surround, diamonds appr...

Van Cleef & Arpels: diamond braceletSet with a graduating row of oval-cut diamonds, diamonds approx. 20.00cts total, signed Van Cleef & Arpels, n...

Van Cleef & Arpels: diamond earringsSet to the front with a trio of oval-cut diamonds between brilliant-cut diamonds, diamonds approx. 3.80cts tot...

Diamond single-stone ringThe brilliant-cut diamond, between single-cut diamond shoulders, principal diamond approx. 3.65cts, ring size KFor furthe...

Fire opal and diamond ringThe step-cut fire opal between baguette-cut diamond shoulders, ring size MFor further information on this lot please vis...

Graff: Pink sapphire and diamond 'Swirl' ringThe circular-cut pink sapphire, weighing 2.07 carats, within a surround of brilliant-cut diamonds, we...

Graff: coloured diamond and diamond 'Bullseye' ringThe central radiant-cut diamond, weighing 1.00 carat, of yellow tint, within concentric circles...

Graff: pink sapphire and diamond 'Constellation' pendantSet with two heart-shaped pink sapphires, weighing 2.46 carats total, with brilliant-cut d...

Diamond crescent brooch, circa 1890Set with old brilliant-cut diamonds, mounted in silver and gold, diamonds approx. 8.00cts total, length 7.90cm,...