Alrosa’s revenue down in Q3 as sales almost halved

[caption id="attachment_839460" align="aligncenter" width="600"] Alrosa’s Udachny mine began operations in 2014 and it is expected to become Russia’s largest diamond mine and one of the world’s biggest. (Image courtesy of Alrosa)[/caption] Russia's Alrosa, the world's top diamond producer by output in...