Louis Vuitton made a splash as it showcased its latest purchase on Tuesday: the world’s second-biggest rough diamond. The LVMH-owned brand, which said last week that it was the new owner of the 1,758-carat Sewelo, displayed the glinting, blackened stone at its Place Vendome store in Paris. The company has not said how much it paid for the diamond. The size of a tennis ball and covered in carbon, it was discovered in Botswana last year and will be cut into gems. Its name, Sewelo, means “rare find” in Setswana, and the stone will be turned into a collection of fine jewelry, according to Lucara, a Canada-based diamond ... (full story)