Gemfields doubles its revenues

Gemfields, the Aim-listed precious stones miner that has actress Mila Kunis as its ambassador, yesterday said revenue had more than doubled to $65.7m (£39.3m) for the six months ended 31 December 2013, as demand for emeralds continues to grow. But half-year earnings fell from $19.5m to $18m, due to costs related to its luxury jewellery brand Faberge and a ruby mine in Mozambique. Output fell by 28 per cent.