Petra Diamonds fetches $15m for 425-carat legacy diamond
The exceptional D colour Type IIa gem was recovered in March from the company’s iconic Cullinan mine, the same that yielded the biggest diamond ever in 1905.
Most of the gold mined in the Democratic Republic of Congo (DRC) is dug up by artisanal and small-scale miners, who work in very dangerous conditions, particularly in rebel-held parts of the country.