by Greg Klein
Coming from the company that commissioned the slogan “a diamond is forever,” Philippe Mellier’s remark sounded ironic. “It’s often been said that a week is a long time in politics,” the De Beers chief executive told customers in Botswana last month. “Well if that’s the case, then I think a year must represent an eternity in the diamond industry.” To be sure, 2015 must have been an eternity he’d like to forget, marking as it did the year demand went south, taking with it the accuracy of some previously bullish near-term forecasts. And now De Beers faces challenges from competitors as it tries to right the wrongs it’s been accused of.