A hardstone intaglio ring of Athena, 18th-19th centuryThe head of Athena, the Roman warrior goddess, wearing a crested helmet and aegis, facing le...

A carnelian intaglio ring of Hercules, likely 18th-19th Century (possibly Roman)Oval, the head and shoulders facing left, the ring mount of floral...

A carnelian intaglio of Hercules, 18th-19th centuryOval, head and shoulders, facing forward, with curling hair and beard, wearing the pelt of the ...

An agate cameo of a bearded man, 19th centuryIntended to be Hercules, with cropped curling hair and beard, wearing a wreath, turning to the right,...

An amethyst intaglio, 18th-19th centuryCircular, depicting Cupid and Psyche holding a wreath, in a later ring mount, ring size J, length 21mm widt...

A hardstone intaglio of Ceres, 18th-19th centuryOval, depicting Ceres with a cornucopia and ears of wheat, in a later ring mount, ring size Q, len...

A hardstone cameo of Hercules and the Nemean Lion, 18th-19th centuryIn white and pale blue, Hercules depicted strangling the lion, his club on the...

A hardstone cameo of Ceres, 19th centuryFacing right, wearing a diadem and ears of wheat in her upswept hair, in later ring mount, ring size U, le...

A Roman gold ring with a carnelian intaglio of AthenaThe draped goddess wearing a helmet and carrying a spear resting on her shoulder, her shield ...

Diamond earclips, mid 20th centurySet throughout with brilliant and baguette-cut diamonds, diamonds approx. 3.00cts total, length 2.5cmFootnotes...

Diamond scroll earclips, circa 1930Set throughout with single-cut diamonds, accented with old brilliant and baguette-cut diamonds, mounted in plat...

Opal and diamond bangle, circa 1900Set with graduated oval opal cabochons within old brilliant and single-cut diamond surrounds, mounted in gold, ...

Diamond bangle, circa 1900Of trifurcated knifewire form with a detachable old brilliant-cut diamond cluster between foliate shoulders set with sim...

An Unmounted brilliant-cut diamondWeighing 1.31 caratsFootnotes:Sold by instruction of the family of Dame Fanny Waterman. For further information,...

Two unmounted diamonds1st: a brilliant-cut diamond weighing 1.21 carats, 2nd: an old cushion-cut diamond weighing 0.32 caratFootnotes:Sold by inst...

Cultured pearl necklace and opal pendant1st: The three strands of 3.0mm-8.0mm cultured pearls to an old brilliant-cut diamond cluster clasp, 2nd: ...

Diamond eternity ringSet with a continuous row of brilliant-cut diamonds, diamonds approx. 1.90cts total, ring size NFootnotes:Sold by instruction...

Curb-link braceletTo a bolt-link clasp, Portuguese assay marks, length 21.0cmFor further information on this lot please visit Bonhams.com ...[mor...

Gay Frères: Gem-set bracelet, circa 1960The woven strap with applied flowerheads set with brilliant-cut diamonds, with quatrefoil clusters of circ...

tiger's eye and diamond ring and earring suiteSet with a navette-shaped tiger's eye cabochon, accented by single-cut diamonds, the earrings en sui...

Sterlé: Tiger's eye pineapple brooch, circa 1960The pear-shaped tiger's eye cabochon with textured gold fronds, signed Sterlé Paris, maker's mar...

Grima: Rose Quartz and diamond brooch, 1965The rough rose quartz crystal within a surround of overlapping textured batons with a brilliant-cut dia...

Chaumet: fancy-link necklaceComposed of textured fancy-links throughout and set to the front with a graduated fringe, signed Chaumet, French assa...

Grima: Aquamarine and diamond brooch, 1967The central pear-shaped aquamarine within a textured abstract setting of 18 carat gold, scattered with b...

Grima: Opal and diamond ring, 1970The opal cabochon in a brilliant and single-cut diamond setting, mounted in 18 carat yellow gold, signed Grima, ...

Diamond pendant necklaceThe brilliant-cut diamond cluster suspended from a similarly and single-cut diamond surmount, on an 18 carat white gold bo...

Sapphire and diamond cluster ringThe oval-cut sapphire, weighing 2.14 carats, within a double surround of circular cut sapphires and brilliant-cut...

Sapphire and diamond pendent earringsThe articulated drops set with calibré-cut sapphires and brilliant-cut diamonds, length 4.2cmFor further inf...

Diamond eternity ringSet with brilliant-cut diamonds, diamonds approx. 3.00cts total, ring size OFor further information on this lot please visit ...

Diamond ringSet with brilliant-cut diamonds, diamonds approx. 1.00ct totalFor further information on this lot please visit Bonhams.com ...[more]

Sapphire and diamond ringSet with a cushion-shaped sapphire, weighing 4.40 carats, between brilliant-cut diamond shoulders, ring size NFootnotes:A...

Sapphire and diamond earringsEach spray set with circular-cut sapphires and brilliant-cut diamonds, length 2.8cmFor further information on this l...

Sapphire and diamond brooch, circa 1960The foliate spray set with flowerheads of circular-cut sapphires and brilliant-cut diamonds, the leaves an...

Single-stone diamond ringSet with a radiant-cut diamond, weighing 1.04 carats, between shoulders of graduating brilliant-cut diamonds, ring size M...

Sapphire and diamond cluster ringThe oval-cut sapphire within a surround of brilliant-cut diamonds, between similarly-set diamond shoulders, ring ...

A two-strand natural pearl necklaceThe natural pearls measuring 3.6-8.2mm, on an adjustable green, blue and gold-coloured woven cord, length adju...

Diamond brooch/pendant and stick pin, circa 1890Set throughout with old brilliant-cut and cushion-shaped diamonds, connected to a knot stick pin v...

Ruby and diamond ring and earclips suiteThe ring set with a cluster of circular-cut rubies within a radiating surround of single-cut diamonds, to...

Diamond cluster ringThe rose-cut diamond cluster between similarly-cut diamond shoulders, foiled closed-back settings throughout, ring size MFor ...

Amethyst and diamond pendantThe oval-cut amethyst within a brilliant-cut diamond surround, diamonds approx. 1.80cts total, length 3.6cmFor furthe...

fancy-link braceletDesigned as a series of textured and polished geometric fancy-links, length 20.9cmFor further information on this lot please vi...

Two-strand natural pearl necklaceThe natural pearls measuring 4.2-6.6mm, on an adjustable green and gold-coloured woven cord, length adjustableFoo...

Diamond cluster ringSet with brilliant-cut diamonds, diamonds approx. 2.35cts total, ring size LFor further information on this lot please visit B...

turquoise, pearl and diamond butterfly broochSet throughout with seed pearls, accented by circular turquoise cabochons, with ruby eyes and a centr...

Diamond bangleSet throughout with brilliant-cut diamonds, diamonds approx. 11.60cts total, inner diameter 6.7cmFor further information on this lot...

Ruby and diamond cluster earringsSet to the centre with a circular-cut ruby in a tiered surround of marquise-cut diamonds and further circular-cut...

Amethyst, pink tourmaline and diamond necklaceThe three heart-shaped amethysts with brilliant-cut diamonds between and surmounted by circular-cut ...

Schlumberger for Tiffany: Diamond 'Sixteen Stones' ringBicoloured with 'X' motifs alternating with brilliant-cut diamonds, ring size LFor further...

Cartier: diamond eternity ring, 1988, and Georg Jensen: diamond 'Infinity' ring1st: Channel-set with a continuous row of princess-cut diamonds, mo...

Diamond ringSet to the front with a graduated series of brilliant-cut diamonds, diamonds approx. 2.15cts total, ring size MFor further information...

Amethyst, sapphire and diamond pendent earringsThe pear-shaped amethysts within bombé surrounds of circular-cut pink sapphires of graduating tint,...

Catherine Best: pink sapphire necklace, bangle and earring suiteThe foliate drop set with vari-cut pink sapphires and brilliant-cut diamonds, to a...

Diamond four-stone ringSet with brilliant-cut diamonds, mounted in platinum, diamonds approx. 2.20cts total, London hallmark, ring size P½For furt...

Three-row cultured pearl necklaceThe cultured pearls measuring 5.25-11.40mm, graduating in tint from white to pale pink and purple, with a diamond...

Quartz and diamond ringSet with two checkerboard-cut smokey-quartz and two similarly-cut amethysts within a brilliant-cut diamond surround, ring s...

Cultured pearl and diamond cluster ringThe 9.75mm cultured pearl within an alternating surround of trapezoid and brilliant-cut diamonds, diamonds ...

Diamond single-stone ringSet with a cushion-shaped diamond between single-cut diamond shoulders, principal diamond approx 1.80cts, ring size PFor ...

Cultured pearl and diamond earringsEach 8.2mm pearl to a brilliant and baguette-cut diamond surmount, length 3.8cm For further information on this...

René Lalique: Art Nouveau enamel and diamond ring, circa 1900Designed as the head of a female, the face with translucent enamel, the headdress wit...

Natural pearl and diamond earrings, circa 1900Each gold cherub on a brilliant-cut diamond scroll, terminating with a 5.9mm x 5.2mm natural pearl d...