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With a total diamond weight of around eight carats, they comprise hoops and bombe clusters of brilliant and baguette-cut stones (signed Cartier London) and detachable articulated pendant drops (unsigned). The estimate was £6000-8000.

Specialist Louise Dennis told ATG the result of the sale “reflects how buoyant the current market is for period jewellery of beautiful design and quality that is fresh to the auction sphere”.

Great Graff

Jewellery specialist Fellows will set a house record of its own on December 7 if the Birmingham firm finds a buyer for an exceptional diamond ring by Graff.

The primary stone is a 43.59ct radiant-cut Fancy Intense Yellow diamond and it comes with a GIA report dated July 14, 2014, stating that the colour is natural and the clarity rated VS2. The estimate is £900,000-1.4m.