This video shows the discovering of the Constellation diamond, in the Karoew mine, Botswana.
Measuring over six centimetres wide, The Constellation weighs 813 carats and was discovered by Canadian company, Lucara Diamond, at its Karowe mine in Botswana in November 2015. de Grisogono has acquired the world's most expensive rough diamond, the brand announced on September 9th at the opening of the Biennale des Antiquaires antique show in Paris.
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