A 1970s bicolour 18ct gold brilliant-cut diamond abstract openwork brooch, by David Thomas.Estimated

An 18ct gold diamond band ring. Of bi-colour design, the brilliant-cut diamond openwork scrolling foliate motif, to the scroll engraved sides and polished back panel. Estimated total diamond weight 0.

An 18ct gold diamond and gem-set brooch. Designed as a giardinetti, with brilliant-cut diamond openwork basket and marquise-shape ruby, sapphire and emerald flowers. Estimated total diamond weight 0.2

An 18ct gold diamond brooch. Of bi-colour design, with intertwined undulating bars and brilliant-cut diamond highlights. AF. Estimated total diamond weight 0.25ct. Hallmarks for London, 2013. Length 4

An 18ct gold diamond Star of David pendant, with chain. The pendant designed as an openwork star, set throughout with brilliant-cut diamonds, suspended from a trace-link chain. Estimated total diamond

VAN CLEEF & ARPELS, A VINTAGE DIAMOND RING, 1970S in 18ct yellow gold, the tapering band pave set round brilliant cut diamonds within a gold border, signed VCA and numbered, French assay marks for 18c

DAVID WEBB, A PAIR OF VINTAGE DIAMOND CLIP EARRINGS, 1960S in 18ct yellow gold and platinum, the domed bodies pave set with round brilliant cut diamonds within a reeded border, signed Webb, stamped 18

A VINTAGE AQUAMARINE AND DIAMOND BOW BROOCH, CIRCA 1950 in platinum and 18ct white gold, set with two tapered fancy cut aquamarines, accented by rose cut, single cut and round brilliant cut diamonds,

BUCCELLATLI, A VINTAGE DIAMOND BOMBE DRESS RING in 18ct yellow gold and white gold, the tapering band of openwork design, set with round brilliant cut diamonds within star shaped pierced motifs, signe

SAPPHIRE AND DIAMOND BROOCH, 1996 The openwork cartouche set with oval-cut sapphires and old brilliant and brilliant-cut diamonds, mounted in 18 carat gold, diamonds approx. 2.10cts total, London hall

David Webb Rock Crystal and Diamond Brooch/Pendant 18k yellow gold/platinum, the brooch mounted with rock crystals beads on a gold frame, accented by round brilliant-cut diamonds weighing approximatel

Crafted in 18K gold and platinum, accented by round brilliant-cut diamonds weighing a total of 3.02 carats, with G-H color and VS clarity; accented by a small cabochon ruby for the eye, weighing 0.42

DAVID WEBB: A DIAMOND AND ENAMEL BROOCH Designed as a tiger with black enamel stripes, the eyes set with round brilliant-cut diamonds; composed of 18k gold; length: 2.5 in.; signed David Webb, accomp

David Webb Porcelain, diamond, gold, and platinum brooch The hand painted porcelain flower, to the roped gold stem, enhanced by a bee set with round brilliant-cut diamonds; 1950s Platinum and yellow g

Crafted in 18K gold and platinum; set with marquise-, round brilliant- and baguette-cut diamonds, weighing a total of approximately 7.35 carats, most with F-G color and VS clarity; measures 2-1/2 x 2-

VINTAGE DAVID WEBB 18K YELLOW GOLD AND DIAMOND BROOCH, marked, layered seaweed form set with seven round brilliant-cut diamonds each approximately 0.12 ct. Marked "DAVID WEBB / 18K WEBB" with copyrigh

DAVID WEBB, YELLOW GOLD, PLATINUM AND DIAMOND BROOCH Containing two heart shaped, 26 baguette and 87 round brilliant and single cut diamonds weighing approximately 7.00 carats total. 2 3/8 x 2 inches.

A pair of 18ct gold 'Chiocciola' sapphire and brilliant-cut diamond earrings, by de Grisogono. Estimated total diamond weight 0.80ct. With Swiss convention marks. Diameter 2.2cms. 20.7gms.

A 3.00 CARAT SOLITAIRE DIAMOND RING in 18ct white gold, set with a round brilliant cut diamond of 3.00 carats, stamped 750, size N / 6.75, 6.9g. Accompanied by a gemological report from the GIA statin

A 1.23 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct white gold, set with a round brilliant cut diamond of 1.23 carats accented by further diamonds to the band, stamped 18CT, size R / 8.5, 3.7g.

BULGARI, A PAIR OF DIAMOND EARRINGS in 18ct white gold, each set with a round brilliant cut diamond of 6.56 and 6.85 carats respectively, signed BVLGARI, stamped WR OR, 1.2cm, 8.7g. 

A DIAMOND NECKLACE in 18ct white gold, comprising a row of round brilliant cut diamonds, suspending a swag of further round brilliant cut diamonds, accented by baguette cut diamonds, the diamonds all

A pair of gold and diamond leaf earclips, Van Cleef & Arpels, Paris, circa 1970's. Each set with a central line of five modern brilliant cut diamonds. 18ct yellow gold. Weight 13.26 grams. Len

CORTEBERT - a lady's mid 20th century gold diamond manual wind cocktail watch. The brilliant-cut diamond openwork front, opening to reveal a circular-shape cream dial, to the brilliant and single-cut

CARTIER, A TRINITY DE CARTIER DIAMOND RING in 18ct yellow gold, the bands set with round brilliant cut diamonds, maker's mark JC, full British hallmarks, size W / 11, 11.5g.