gemstone

An 18ct gold sapphire and diamond cluster ring, the oval mixed-cut sapphire claw-set within a surround of brilliant-cut diamonds, London hallmark,...

An amethyst and diamond necklace, the 9ct gold brick-link chain leading to a graduated row of oval-cut amethysts, with single-cut diamond highligh...

An amethyst and diamond dress ring, the cushion-cut amethyst within an openwork basket setting of scroll design set with rose-cut diamonds, betwee...

An early 20th century diamond pendant/brooch, the openwork cartouche set throughout with old brilliant-cut diamonds and with a pearl highlight to ...

A pair of ruby and diamond earrings, the ribbon scrolls set with calibré-cut rubies and diamonds and with brilliant-cut diamond highlights, stampe...

A diamond cluster ring, the tiered lozenge-shaped cluster set with brilliant-cut diamonds, mounted in 18ct gold, UK hallmark, total diamond weight...

A sapphire and diamond ring, the pierced cartouche set with a quatrefoil of brilliant-cut diamonds within a surround of calibré-cut sapphires, tot...

A sapphire and diamond ring, of crossover design, set with circular-cut rubies and brilliant-cut diamonds, with reeded detailing to the front, sta...

A pink sapphire and diamond dress ring, of flowerhead design, set with brilliant-cut diamonds and calibré-cut pink sapphires, mounted in 18ct gold...

A mid 20th century gem-set bracelet, the articulated strap formed as a series of overlapping and pierced panels set with circular-cut rubies and e...

A pair of gem-set cluster earrings, the oval emerald cabochons within a surround of cultured pearls and brilliant-cut diamonds, total diamond weig...

A garnet bracelet by Boucheron, the hoop-shaped links with textured finish, two set to the centre with circular fancy-cut garnets, signed ‘Boucher...

A 19th century diamond spray brooch, probably American, realistically modelled and with a butterfly to the stem, set with old brilliant and rose-c...

A diamond rivière necklace, collet-set with a graduated row of brilliant-cut diamonds, stamped ‘750’, total diamond weight approximately 7.75 cara...

A ruby and diamond ring, the oval ruby cabochon set between stepped brilliant-cut diamond shoulders, stamped ‘18K’, ring size K. £300-£500 --...

A diamond dress ring, of crossover design, set with brilliant, single and calibré-cut diamonds, Portuguese assay mark, total diamond weight approx...

An 18ct white gold and diamond ring, set throughout with brilliant-cut diamonds, Birmingham hallmark for 2011, ring size Q. £200-£260 --- ...

An Art Deco ruby and diamond brooch, circa 1930, the open circlet set throughout with transitional-cut diamonds and with step-cut ruby highlights,...

A mid 20th century compact, of rectangular form with rounded corners and of bicolour basket weave design, with a calibré-cut ruby thumbpiece, open...

A diamond ring, set to the front with a graduated row of brilliant-cut diamondsm mounted in 18ct gold, Birmingham hallmark, total diamond weight a...

A coloured diamond and diamond ring, set with a cushion-cut diamond of yellow tint, weighing 1.61.carats, between two pear-shaped diamonds, partia...

A rose-quartz pendant by H. Stern, the cushion-shaped rose-quartz claw-set beneath a trio of brilliant-cut diamonds, stamped ‘750’, maker’s mark, ...

A sapphire and diamond bar brooch, circa 1900, the cushion-shaped mixed-cut sapphire between two old brilliant-cut diamonds, to a polished and tap...

An early 20th century natural pearl and diamond pendant, the baroque-shaped pearl of grey tint, measuring approximately 13.5 x 12.0mm, beneath a r...

A diamond dress ring, circa 1970, the openwork cluster set with brilliant and baguette-cut diamonds, to a reeded hoop, total diamond weight approx...

An emerald and diamond ring, the step-cut emerald in a surround of brilliant-cut diamonds, between bifurcated shoulders set with similarly-cut dia...

A cultured pearl and diamond ring and earring suite, the cultured pearl cluster with a scroll of brilliant-cut diamonds to either side, the earrin...

A diamond dress ring, the bombé ring of bicolour basket weave design, with a pavé-set diamond scroll to the centre, indistinct assay marks, stampe...

A diamond ring, the central brilliant-cut diamond set between staggered baguette-cut diamonds, principal diamond approximately 0.60 carat, ring si...

A diamond ring, the step-cut diamond claw-set between graduated single-cut diamond shoulders, stamped ‘PLAT’, principal diamond weight approximate...

A diamond three stone ring, set with a row of brilliant-cut diamonds, between tapered shoulders, indistinct stamp, total diamond weight approximat...

A vari gem-set bracelet, the articulated bracelet channel-set with combination of calibré-cut sapphires, rubies and emeralds spaced by brilliant-c...

A sapphire and diamond ring, the oval mixed-cut sapphire claw-set between brilliant-cut diamond trios and similarly-set crossover shoulders, Portu...

An early 20th century pearl and diamond mistletoe ring, the crossover ring designed as diamond-set mistletoe sprigs with pearl berries, to a reede...

A diamond single stone ring, the cushion-cut diamond, weighing 1.65 carats, in an eight claw setting, stamped ‘18ct’, ring size H. £1,800...

An aquamarine and diamond ring, the cut-cornered aquamarine in a rubover setting within a surround of brilliant-cut diamonds, to a broad band, mak...

A diamond eternity ring, set throughout with single-cut diamonds, total diamond weight approximately 0.70 carat, ring size M. £200-£300 --- ...

A diamond eternity ring, set throughout with old brilliant-cut diamonds, engraved decoration to the band, total diamond weight approximately 1.20 ...

A diamond necklace, later adapted from a bracelet, composed of polished lozenge-shaped links spaced by brilliant-cut diamonds, the whole suspended...

A late 19th century gem-set brooch, set with two rows of vari-cut diamonds, a sapphire, ruby, emerald and pink sapphire, and various pearls, mount...

A hardstone cameo and diamond ring and earrings, each within rose-cut diamond borders, earrings with later screw fittings, (one diamond deficient)...

An 18ct gold sapphire and diamond cluster ring, the large oval mixed-cut sapphire claw-set within a surround of brilliant-cut diamonds, Birmingham...

An Indian gem-set and cultured pearl necklace, the six strand cultured pearl necklace leading to a centrepiece designed as a flowerhead cluster be...

A gem-set and freshwater cultured pearl necklace and earring suite, collet-set with vari-coloured gemstones and freshwater cultured pearls, with a...

A diamond pendant, the whiplash scroll surround set with brilliant-cut diamonds and suspending a cushion-shaped diamond drop, weighing 2.02 carats...

A hardstone cameo suite, circa 1860, French, comprising a pendant, pair of ear pendants, and two studs, each centred with a circular hardstone cam...

A mid 19th century diamond buckle brooch, set with old brilliant-cut diamonds and blue enamel highlights, with engraved foliate decoration and rop...

A pair of coral and diamond ear clips, each curved Corallium Rubrum panel diagonally inset with a series of single-cut diamonds, stamped ‘14k 585’...

A small collection of jewellery, comprising a citrine dress ring, brooch and pair of ear pendants, together with an aquamarine ring and jade brooc...

A natural pearl necklace, the two rows of graduated pearls, measuring approximately 4.5 - 7.2mm, with seed pearl spacers between, to a 19th centur...

An antique sapphire and gem set jewel, the central cushion-shaped sapphire within a rose-cut diamond and sapphire cluster surround spaced by pearl...

An antique diamond dog brooch, realistically modelled as a running hound, set throughout with rose-cut diamonds and with gem-set cabochon eye, mou...

An 18ct gold and gem-set novelty brooch, circa 1960, designed as a winking cat, with a turquoise cabochon body with similarly-cut sapphire eye, ru...

A collection of six gem-set rings, comprising a wirework crossover ring with dragon head motif terminals, an Indian diamond cluster ring with poly...

A pair of aquamarine and diamond cluster ear studs, the circular-cut aquamarines claw-set within a surround of brilliant-cut diamonds, stamped ‘18...

A freshwater cultured pearl and diamond bracelet, the multi-strand torsade terminating in a pieced brilliant-cut diamond set clasp, total diamond ...

Two early 20th century enamel flower brooches, the first modelled as a purple enamel pansy with an old brilliant-cut diamond to the centre, the se...

Four late 19th / early 20th century brooches, comprising an amethyst-set thistle brooch, a turquoise bar brooch, an amethyst knot brooch, and a Co...

A gem-set leaf brooch, circa 1960, the leaves with reeded detailing and set with circular-cut sapphires and brilliant-cut diamonds, total diamond ...

An Art Nouveau pendant on chain, French, circa 1900, the heart-shaped pendant depicting a female profile with gem-set flowerhead decoration, on a ...