Cartier: diamond watch, circa 1955Circular dial with baton hourmarkers, concealed beneath a baguette and brilliant-cut diamond case, to a plaited ...

Pair of diamond earstudsEach set with a brilliant-cut diamond, weighing 1.15 carats totalFor further information on this lot please visit Bonhams....

Emerald and diamond cluster ringThe circular-cut emerald weighing 3.21 carats within a geometric surround of single-cut diamonds, rubbed mark, rin...

Sapphire and diamond brooch, circa 1955The foliate spray set throughout with vari-cut diamonds and marquise-cut sapphires, diamonds approx. 5.60ct...

Pair of sapphire cluster earringsEach foliate cluster set throughout with circular-cut sapphires and single-cut diamonds, length 1.4cmFor further ...

Diamond crossover ringThe brilliant-cut diamonds obliquely-set between similarly-cut diamond shoulders, principal diamonds approx. 0.65ct total, r...

Emerald and diamond brooch, circa 1955The floral spray set throughout with circular-cut emeralds, brilliant, baguette and tapered baguette-cut dia...

Emerald and diamond braceletThe articulating frontispiece millegrain-set with old brilliant-cut diamonds, accented by vari-cut emeralds, to a text...

Emerald and diamond ring and earring suite, circa 1950The single-cut diamond leaf issuing three circular-cut emeralds, the stem forming the band t...

Cultured pearl necklaceThe two strands of 6.5mm-9.5mm cultured pearls to a textured clasp set with an oval cabochon pink gemstone in a foiled clos...

Emerald and diamond cluster ringThe octagonal step-cut emerald within a scalloped surround of brilliant-cut diamonds, between similarly-cut diamon...

Ruby and diamond pendant, ring and earring suiteThe marquise-cut ruby within a surround of calibré-cut rubies and brilliant-cut diamonds, suspende...

Pearl, enamel and gem-set swan pendantThe two swans set with pearl bodies, circular-cut ruby eyes and brilliant-cut diamond wings, within a simila...

Fancy coloured diamond and diamond ringTension-set with a brilliant-cut diamond of yellowish brown tint, the bicoloured band pavé-set to one side ...

Sapphire and diamond ringThe oval-cut sapphire, between brilliant-cut diamond shoulders, ring size approx. KFor further information on this lot pl...

Enamel and diamond peacock ring and earclip suiteThe textured peacock with an articulating tail decorated in blue guilloché enamel, accented by br...

Mid 20th century enamel and diamond peacock brooch/pendant necklaceThe peacock's breast highly decorated with blue and green guilloché enamel feat...

Mabé cultured pearl necklaceSet to the front with a latticework of mabé pearls with mother-of-pearl backs, connected via cable-link chains, length...

Ruby and diamond ring and earring suiteThe tiered cluster of pear-shaped rubies and brilliant-cut diamonds to a trifurcated band, the earrings en ...

Three-strand cultured pearl necklace with a ruby claspThe three rows of 5.5mm-9.5mm cultured pearls to a clasp of channel-set step-cut rubies, len...

Diamond plaque ringThe cushion-shaped diamond within a pierced surround of rose-cut diamonds, principal diamond approx. 0.75ct, ring size approx....

Chalcedony and diamond broochThe blue chalcedony panel carved with floral and foliate motifs, within a millegrain-set brilliant-cut diamond surrou...

Pair of ruby and diamond earringsOf geometric openwork design with foliate detail, set with calibré-cut rubies, single and brilliant-cut diamonds,...

Diamond single-stone ringCollet-set with an old brilliant-cut diamond weighing 2.50 carats, ring size approx. QFor further information on this lot...

Louis-Ernest Barrius (French, 1841-1905): A gilt bronze figure of 'Nature Revealing herself to Science,'the semi-nude figure with downcast gaze cl...

Art Deco diamond bracelet, circa 1925Of geometric from, set throughout with brilliant and single-cut diamonds, diamonds approx. 4.25cts total, l...

Art Deco sapphire and diamond clip brooch, circa 1930The openwork shield-shaped clip set with old brilliant and single-cut diamonds, with lozenge ...

Pair of diamond earringsEach pierced wing set throughout with brilliant and single-cut diamonds, length 2.6cmFor further information on this lot p...

Diamond and get-set charm braceletThe fancy-link chain suspending various charms, including a yacht, an anchor and a palm tree, set throughout wit...

Sapphire and diamond dress ring, circa 1935The cushion-shaped sapphire between tiered shoulders set with baguette, brilliant and single-cut diamon...

A Napoleon III giltwood canapein the Louis XV styleWith floral, scroll, acanthus and shell carved frames, the shaped toprail above scrolled arm su...

Diamond necklace and earstudsThe flattened curb-link chain centrally-set with a heart-shaped diamond, accompanied by similarly-cut diamonds earstu...

Cultured pearl and diamond braceletThe two row 7.5mm cultured pearl bracelet to a clasp set with brilliant-cut diamonds and an 8.5mm cultured pear...

Tamara Comolli: Cultured pearl and diamond earrings, and a diamond dress ring1st: Each 12.3mm cultured pearl suspended from a surmount pavé-set wi...

Hemmerle: Diamond single-stone ring,Of bicoloured design, set with a brilliant-cut diamond, diamond approx. 0.65ct total, maker's mark GH, ring si...

Micromosaic, ruby and diamond pendant necklaceThe circular plaque depicting Doves of Pliny in polychrome tesserae, within a brilliant-cut diamond ...

Gem-set and enamel dress ringThe polychrome enamel rose within a surround of circular-cut amethysts and brilliant-cut diamonds, the mount set thro...

A pair of carved stone Stylobate Lions13th/ 14th centuryEach carved with flowing manes holding heraldic shields carved with a double-headed eagle,...

Coral corallium rubrum and diamond cluster ring and earringsSet with an oval coral corallium rubrum cabochon and brilliant-cut diamonds, the earri...

Cultured pearl and diamond necklaceThe single row of 12.0mm - 15.0mm cultured pearls of white, gold and brown tint, to a spherical clasp pavé-set ...

Diamond and fancy coloured diamond ringThe openwork band set to the front with brilliant-cut diamonds and diamonds of brown tint, brown diamonds u...

Fancy coloured diamond and diamond flower earringsEach set with brilliant-cut diamonds and similarly-cut diamonds of brown tint, brown diamonds un...

Diamond and black diamond bangle and necklace1st: Of latticework design, set with brilliant-cut diamonds and circular-cut treated black diamonds, ...

Diamond earstudsEach set with a brilliant-cut diamond, diamonds approx. 0.80ct totalFor further information on this lot please visit Bonhams.com ...

Star sapphire and diamond ringThe oval cabochon star sapphire between bifurcated shoulders pavé-set with brilliant-cut diamonds, diamonds approx....

Vari-coloured sapphire and diamond pendent earringsSet with oval-cut sapphires, pink, yellow, orange, purple and green sapphires and brilliant-cut...

Diamond dress ringOf crossover design, set to the front with baguette and brilliant-cut diamonds, diamonds approx. 1.45cts total, two brilliant-cu...

Diamond ring and a diamond eternity ring1st: Of crossover design, with brilliant-cut diamond terminals, 2nd: Set throughout with brilliant-cut dia...

Fancy coloured diamond and diamond flower necklace and earring suiteOf bicoloured design, set with brilliant-cut diamonds of yellow tint and simil...

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

Diamond cluster ringSet with brilliant-cut diamonds, diamonds approx. 0.70ct total, ring size approx. K½For further information on this lot please...

Diamond cluster earringsSet with brilliant-cut diamonds, diamonds 2.87cts total, length 1.2cmFor further information on this lot please visit Bonh...

Emerald and diamond earringsEach of openwork bombé lattice, set with oval-cut emeralds and brilliant-cut diamonds, diamonds approx. 3.20cts total,...

Diamond pendent earringsDesigned as a series of cushion-shaped and brilliant-cut diamond clusters, length 3.4cmFootnotes:Accompanied by a report f...

Jade and diamond ringThe oval jade cabochon within a brilliant-cut diamond surround, diamonds approx. 0.80ct total, ring size very approx. O (hoop...

Emerald and diamond star earringsEach set throughout with brilliant-cut diamonds, circular-cut and pear-shaped emeralds, length 2.9cmFor further i...

Amethyst and diamond dress ring, 2008The chequerboard-cut amethyst with brilliant-cut diamond claws between pierced similarly-cut diamond shoulder...

A French 19th century giltwood and gilt composition marginal mirrorThe central plate with a pearled bordeer, the subsidiary plates with applied sc...

Boucheron: Interchangeable baton cufflinks, circa 1990Double-sided: Each set with interchangeable reeded baton and onyx terminals, signed Bouchero...

Moss agate and diamond pendantThe rectangular panel of moss agate within a textured mount of bark design, accented by brilliant-cut diamonds, make...