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Constellation is the world’s most expensive diamond !

Unveiled during the opening of the 28th Biennale des Antiquaires in Paris, De Grisogono presented their latest acquisition: the most expensive diamond named « The Constellation ». Measuring over six centimeters wide and weighting  813 carats, the rough diamond was sourced from  the Karowe mine in Botswana. Discovered by the Canadian company Lucara Diamond, Constellation was bought 63 million dollars by the Swiss watch and jewelry company De Grisogono re-inforcing their desire to become one of the leading manufacture of the industry.