STOCKHOLM , Sweden (AFP) — Canadian mining company Lucara Diamond on Monday announced the sale of a huge 813 carat diamond for a record $63 million (55 million euros), ahead of the sale of an even bigger one. The sale of the massive “Constellation” diamond was “the highest price ever achieved for a rough diamond, breaking all records,” CEO William Lamb said in a statement. The name of the buyer for the diamond, discovered in […]