French fashion house Christian Dior on Thursday posted a 40 per cent year-on-year jump in first half net profit as its couture unit swung into the black and revenue rose 3.3 per cent. Dior, the holding company for LVMH Moet Hennessy Louis Vuitton SA, said its net profit rocketed to 119 million euros from 85 million in 2001 with operating profit soaring 22 per cent to 844 million euros and revenue up at 6.03 billion euros.