Lucapa has intensified its search for the primary source of rough diamonds that supply the Lulo mine in Angola by sampling kimberlites from the nearby Cacuilo River. The miner has identified the area beneath and near the Cacuilo River as a key priority for sampling, believing that the water body carried diamonds from a nearby “mother lode” into Lulo’s alluvial pit. However, severe flooding of the river has previously limited access to this area for