Nigeria's financial capital Lagos is running on fumes again.
Nigerian Thelma West is a rare gem in the diamond world as a woman in a male-dominated sector with few Africans, despite the continent being the main source of the precious rocks.
Zimbabwean President Robert Mugabe has announced that the government will take over all the country's diamond mines to stop foreign firms from siphoning off gems without declaring them.
Nigeria is to break up its state-run oil and gas firm into 30 separate companies, the country's junior oil minister announced, as part of wider plans to overhaul the corruption-ridden operation.
In one of the biggest such raids yet, police and soldiers destroyed scores of illegal gold mining camps in Peru's Madre de Dios region this week.