A De Beers Millennium Jewel 4 blue diamond at the Sotheby’s Gallery in Admiralty in March. Photo: Dickson Lee

World diamond supply to peak in 2017, De Beers chief executive says

As stones become harder and more costly to extract, very little new supply is expected until 2020

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A De Beers Millennium Jewel 4 blue diamond at the Sotheby’s Gallery in Admiralty in March. Photo: Dickson Lee
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