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An early 20th century sapphire and diamond brooch, circa 1910 Millegrain-set with a central round-cut diamond in a border of calibré-cut sapphir...

A French late 19th century diamond ring, circa 1890 Claw-set with three old round-cut diamonds, in a pierced surround set with rose and eight-cut ...

A mid 19th century diamond brooch, circa 1850 Of scrolling Catherine wheel design, set throughout with graduated old round-cut diamonds, rose-cu...

Two early 20th century gem-set pendants The first set with an oval-cut aquamarine in a border of seed pearls, stamped 15ct; the second of floral...

A diamond cluster ring Claw-set with an old round-cut diamond, in a border of old round and cushion-cut diamonds, plain band, stamped 18ct Ring ...

An enamel 'Nautical Flag Alphabet' bracelet Each link depicting an enamelled flag representing a letter of the alphabet, the corresponding lette...

An early 20th century turquoise and pearl bracelet Each scrolling link collet-set with a cabochon turquoise, joined by trace links set with a se...

A 19th century seed pearl and enamel brooch, circa 1870 Of scalloped outline, the pierced detail to the centre set with seed pearls, blue enamel d...

A diamond single-stone ring in 18ct yellow gold Claw set with an old round-cut diamond, weighing approximately 0.90cts, plain band, stamped 18ct...

An early 20th century sapphire and diamond cluster ring, circa 1915 Millegrain-set with a round-cut sapphire, in a border of twenty-four eight-cut...

A sapphire and diamond ring, circa 1930s Claw-set with a cut-cornered rectangular-cut sapphire, each geometric shoulder set with three baguette-...

A sapphire and diamond bracelet, circa 1920s Part millegrain-set with a cushion-cut sapphire and two French-cut diamonds, in a border of eight-cut...

A diamond three-stone ring Claw-set with three old round-cut diamonds, plain band, unmarked Ring size: P

A diamond three-stone ring Claw-set with three cushion-cut diamonds, plain band, stamped 18ct & PLAT Ring size: N

A 19th century diamond brooch, circa 1880s Set throughout with old cushion-cut diamonds, unmarked Width: 2.4cm

A late 19th century diamond crescent brooch, circa 1890 Set throughout with graduated old round-cut diamonds, unmarked; in a fitted box for Hami...

An 18ct gold diamond cluster ring Claw-set with seven round brilliant-cut diamonds, totalling approximately 1.00cts, plain yellow gold band, UK ha...

An 18ct gold diamond cluster ring Claw-set with seven graduated round brilliant-cut diamonds, totalling approximately 1.25cts, plain yellow gold...

Chopard: A limited edition 'Animal World' Kangaroo diamond pendant The 18ct rose gold glazed pendant holding a small rose gold kangaroo and coll...

Chimento: An 18ct gold bracelet Composed of alternating ball and tapered baton links, the clasp set with a small round brilliant-cut diamond, UK...

An 18ct gold diamond dress ring, 1970s Of stylised design, claw-set with nine round brilliant-cut diamonds, ribbed detail to band, UK hallmarks Ri...

A diamond pendant Claw-set with a round brilliant-cut diamond, weighing approximately 0.50cts, suspended from a 9ct gold belcher-link chain Leng...

H Stern: A diamond dress ring Of foliate design, pavé-set with round brilliant-cut diamonds, plain band, stamped 18K Ring size: K/L

An 18ct gold diamond three-stone ring Claw-set with a round brilliant and two pear-shaped diamonds, totalling approximately 1.25cts, plain yello...

A diamond three-stone ring in 18ct yellow gold Claw-set with three graduated round brilliant-cut diamonds, totalling approximately 1.00cts, plai...

A multi-gem 'Tennis Racket' brooch Pavé-set with graduated round brilliant-cut diamonds, round-cut sapphire and calibré-cut ruby detail, with ap...

Vhernier: A pair of 'Olympia' pendent earrings Each set with two cabochon mother-of-pearl and rock-crystal doublets, between polished oval links...

A 14ct gold emerald and diamond cluster ring Claw-set with an oval-cut emerald in a border of ten round brilliant-cut diamonds, plain yellow gol...

A pair of emerald and diamond stud earrings Each collet-set with a square step-cut emerald, in a part border of five round brilliant-cut diamond...

An emerald and diamond three-stone ring Claw-set with a cut-cornered rectangular-cut emerald and two baguette-cut diamonds, plain band, unmarked...

A tourmaline and diamond brooch Of stylised design, claw-set with a round-cut blueish-green tourmaline and nine small round brilliant-cut diamon...

A tourmaline and diamond bracelet Composed of alternating links collet-set with a rectangular step-cut green tourmaline and pairs of small round...

A French tourmaline cocktail ring Collet-set with a pear-shaped pink and green tourmaline in a bold mount, indistinct French control marks to band...

Attributed to John Donald: A pair of coral and diamond earrings Each coral bead with applied collet-set diamond detail, post and butterfly fitti...

Albion Craft Company: A 9ct gold rose quartz brooch, 1972 The rose quartz crystal within a textured tendril surround, UK hallmarks Length: 6.0cm...

Charles de Temple: A sodalite and cultured pearl necklace, 1965 Composed of alternating sodalite beads and cultured pearl sections, interspersed...

A 9ct gold large amethyst cocktail ring Claw-set with a large cut-cornered rectangular-cut amethyst, plain yellow gold band, UK hallmarks Ring s...

Mappin & Webb: An 18ct gold necklace and matching bracelet Each composed of five strands of textured satin-finish gold, box clasp, full UK hallmar...

Tiffany & Co: A prasiolite cocktail ring Claw-set with a cut-cornered rectangular-cut prasiolite, plain band, signed, stamped 925 Ring size: P

Tiffany & Co: A bangle and matching pendant Each of rounded square outline, stamped T&Co; 925 1837, the pendant to a trace-link chain; with orig...