A diamond, cultured pearl and ruby bee broochThe abdomen set with old brilliant-cut diamonds and decorated with black enamel, the wings set with s...

A spinel and diamond ringThe oval-cut spinel within a surround of old brilliant-cut diamonds, diamonds approx. 0.50ct total, ring size approx. K½...

A pair of late 19th century diamond flower broochesEach designed as a rose-cut diamond daisy, the stamen set with a cushion-shaped diamond, cushio...

A late 19th century diamond bow broochThe loosely tied bow set throughout with cushion-shaped, old brilliant and rose-cut diamonds, the reverse wi...

A diamond bee brooch, circa 1890Designed as two rose-cut diamond bees, each with a 5.5mm pearl thorax, connected by a cable-link chain with a 4.0m...

A diamond three-stone ringSet to the front with a trio of cushion-shaped diamonds, the gallery and shoulders of scrollwork design, diamonds approx...

A natural half pearl and diamond cluster ringThe 9.6mm - 9.7mm x 5.5mm natural half pearl in a closed back setting, within a surround of old brill...

A ruby, emerald and diamond butterfly brooch, circa 1890The marquise-cut diamond abdomen and circular-cut ruby thorax between similarly-cut ruby a...

A late 19th century paste and diamond flower broochThe textured stems issuing carved purple paste flowers accented by rose-cut diamonds, with simi...

A diamond and ruby butterfly brooch, circa 1880The en tremblant butterfly with wings of openwork design, set throughout with old brilliant-cut dia...

A diamond bee broochThe wings, abdomen and eyes set with old brilliant-cut diamonds, the thorax with a rose-cut diamond, length 2.4cmFor further i...

A turquoise ringThe oval turquoise cabochon in a raised setting, ring size approx. L½For further information on this lot please visit Bonhams.com ...

A sapphire and diamond braceletDesigned as an articulating series of abstract textured links, composed of overlapping batons with granulation deta...

A diamond bracelet, circa 1960The continuous series of openwork ropetwist links each centrally-set with a row of brilliant-cut diamonds, diamonds ...

A coral broochThe circular coral corallium rubrum cabochon held in a bird claw, to a double bar with bead and ropetwist detailing, late 19th and e...

A sapphire and diamond cluster ringThe circular-cut sapphire within a brilliant-cut diamond surround, mounted in 18 carat white and yellow gold, d...

A diamond collar necklace, by Elsa Peretti for TiffanyDesigned as a mesh collar, accented to the front by brilliant-cut diamonds, signed Peretti, ...

A ruby and diamond brooch, French, circa 1960The textured openwork buds with bombé terminals, pavé-set with circular-cut rubies or brilliant-cut d...

A pair of diamond earringsEach designed as a stylised openwork spray, with granulation detail throughout, accented by single-cut diamonds, diamon...

A two-stone diamond ringObliquely-set with two brilliant-cut diamonds, the shoulders set with similarly-cut diamonds, mounted in 18 carat yellow g...

A Belle Époque diamond brooch, circa 1910The circular openwork plaque with knifewire and foliate detail, millegrain-set with old brilliant and sin...

A diamond single-stone ringThe old brilliant-cut diamond between similarly and single-cut diamond shoulders, principal diamond approx. 1.45cts, r...

A diamond heart pendantThe openwork heart pavé-set throughout with old brilliant and rose-cut diamonds, millegrain detail throughout, to a similar...

A diamond single-stone ringThe old brilliant-cut diamond between similarly and single-cut diamond shoulders, principal diamond approx. 2.00cts, r...

An emerald and diamond three-stone ringThe circular-cut emerald between old brilliant-cut diamond shoulders, diamonds approx. 0.90ct total, ring s...

A sapphire and diamond plaque ring, circa 1920Of geometric design, the central step-cut diamond within tiered surrounds of calibré-cut sapphires a...

A mid-20th century jade and diamond pendant necklaceThe carved jade 'house boat' accented by single-cut diamonds, to a later trace-link chain, mou...

An Art Deco sapphire and diamond cocktail watch, circa 1920The barrel-shaped dial with Arabic numerals within a pierced bezel of brilliant and sin...

An enamel and diamond pansy brooch, and an onyx and diamond bow brooch, circa 19201st: The guilloché enamel pansy centrally set with a brilliant-c...

A diamond eternity ringSet throughout with brilliant-cut diamonds, diamonds approx. 1.00ct total, ring size approx. KFor further information on th...

A lapis lazuli and diamond ring, by Geoffrey Rowlandson, 2003The carved lapis lazuli plaque of abstract trefoil form, accented by courses of brill...

A lapis lazuli and diamond pendantThe carved lapis lazuli drop accented by courses of brilliant-cut diamonds, to a simiarly-cut diamond surmount, ...

A diamond single-stone ring, by CartierThe polished 18 carat yellow gold band centrally set with a brilliant-cut diamond, diamond approx. 0.40ct, ...

A sapphire and diamond three-stone ringThe oval-cut sapphire between brilliant and old brilliant-cut diamond shoulders, diamonds approx. 1.00ct to...

Two lapis lazuli necklaces1st: The uniform series of 12.0mm lapis lazuli beads interspersed at intervals with polished rondels, to a polished clas...

A gem-set fish brooch/pendantThe scales pavé-set throughout with circular-cut rubies and vari-coloured sapphires, the head, face and fins set with...

A topaz and diamond ringThe oval-cut yellow topaz within a brilliant-cut diamond surround, diamonds approx. 1.55cts total, ring size approx. Q½For...

A lapis lazuli and cultured pearl necklace and braceletDesigned as a series of 7.5mm lapis lazuli beads interspersed at intervals with 5.0mm cultu...

A pair of citrine and coloured diamond pendent earrings, by Geoffrey Rowlandson, 2003Each pear-shaped rose-cut citrine drop in a closed-back setti...

A diamond 'Coco Crush' bangle, by ChanelOf quilted design, pavé-set to the front with brilliant-cut diamonds, mounted in 18 carat yellow gold, si...

An emerald and diamond ringOf openwork design, set with a rose-cut diamond and an oval emerald cabochon within a scrolling similarly-cut diamond s...

A gem-set butterfly brooch, circa 1895, and an early 20th century enamel and pearl novelty bar brooch, by Alabaster & Wilson1st: Designed as a ros...

An early 20th century enamel and diamond pansy broochThe polychrome enamel pansy centrally set with a brilliant-cut diamond, mounted in gold, diam...

An enamel and diamond pansy brooch, by Theodore B. Starr, circa 1905The floral spray composed of a trio of polychrome enamel pansies, each set wit...

A ruby and diamond bee brooch, circa 1890Set throughout with old brilliant and rose-cut diamonds, with circular ruby cabochon eyes, mounted in sil...

A diamond cluster ringThe rose-cut diamond within an openwork surround of similarly-cut diamonds, between scrolling foliate shoulders, closed-back...

A diamond dress ringThe navette-shaped openwork plaque set throughout with rose-cut diamonds, Dutch assay mark, ring size approx. T½For further in...

Two early 20th century enamel pansy broochesEach polychrome enamel pansy centrally set with a seed or 4.5mm cultured pearl, mounted in gold, lengt...

A diamond flower brooch, circa 1890Designed as a knifewire stem issuing rose-cut diamond leaves in foiled closed-back settings and a pear-shaped d...

A sapphire and diamond dragonfly brooch, circa 1890The oval-cut sapphire thorax issuing a series of similarly and circular-cut sapphires, between ...

A cultured pearl necklace and earstud suiteThe single-strand composed of 9.0mm-10.0mm cultured pearls of grey tint, to a brushed barrel clasp acce...

A pair of sapphire and diamond pendent earringsEach openwork quatrefoil surmount issuing an articulating chandelier drop of crescent motifs, set t...

A diamond braceletDesigned as a series of interlocking hemispherical links, channel-set throughout with baguette-cut diamonds, diamonds approx. 5....

A sapphire and diamond dress ring, by Geoffrey Rowlandson, 1996The pair of old brilliant-cut diamonds accented by single-cut diamonds between two ...

A sapphire and diamond ringThe oval-cut sapphire within a tiered cluster of obliquely-set brilliant-cut diamonds, to a crossover band, diamonds ap...

A sapphire and diamond crossover ringObliquely-set with oval-cut sapphires, the bombé mount pavé-set to the front with brilliant and princess-cut ...

A sapphire and diamond cluster ring, 1975The oval-cut sapphire within a brilliant-cut diamond surround, accented by baguette-cut diamond shoulders...

A sapphire and diamond pendant necklace, by GraffDesigned as a concave disc pavé-set with circular-cut sapphires, beneath an openwork scrolling mo...

A cultured pearl and diamond ringThe 13.0mm cultured pearl within a tiered surround of pear-shaped diamonds, diamonds approx. 4.00cts total, maker...

A pair of diamond banglesEach set with a continuous series of brilliant-cut diamonds, diamonds approx. 4.20cts total, one thumbpiece deficient, in...