VAN CLEEF & ARPELS Diamond brooch, ‘Flower’, 1950s

MAUBOUSSIN Gem-set and diamond parure, circa 1991

FRED Diamond ring, weighing 15.60 carats, D Colour, VS2 Clarity, Type IIa

HEMMERLE Ruby, emerald and sapphire brooch, ruby weighing 3.40 carats, Burma, no heat

STERLÉ Pair of natural pearl and diamond ear clips

VAN CLEEF & ARPELS Yellow sapphire and diamond brooch, ‘Ballerina’

GRAFF Ruby and diamond ring, weighing 9.37 carats, East Africa, no heat