Michael Bowman's auction  on Saturday 6th December features a GIA certified 4 carat fancy yellow diamond which is graded as internally flawless. The art deco emerald cut stone is set on a white metal shank numbered '54220' and is estimated at £30,000-40,000.

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Also in white metal is a 15" graduated necklace set with 14 rectangular cut emeralds united by figure-of-eight diamond set links set to fetch£18,000-22,000.

Collectors' items include an early Louis Vuitton cabin trunk of plain design at £500-750, a 1914 Vintage bottle of Rouyer Guillet champagne cognac £800-1,200 and a 1960 signed Picasso limited edition lithograph - 'Paix Desarmenent - Peace' at £2,000-3,000.

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Check out the rest of the sale here.