Russia's Alrosa diamonds output up 6% in Q1

[caption id="attachment_822921" 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.[/caption] Russia’s Alrosa, the world's No.1 diamond producer by output in carats, said Tuesday...