It is an industry that was supposed to be cleaned up, after the turn-of-the-millennium­ notoriety surrounding so-called blood or conflict ­diamonds—precious stones mined in African war zones ...

International laws prohibit the trade of diamonds from countries in conflict, but for now, it is impossible to be certain of the origin of the precious stones. A Polish laboratory has found the ...

because of "ethical sourcing and sustainability compared to natural diamonds, given the concerns around blood diamonds." However, there's not much solid proof to back these sustainability claims.

In this interview, we find out what technologies a European project has studied and put into practice to ensure that the origin of a diamond is certain from the moment it is mined. #SmartRegions ...