CAFUNFO, Angola—On paper, Angola is a poster child for the global effort to keep "blood diamonds" out of the world's jewelry stores.
International pressure helped end a vicious civil war a decade ago by strangling the ability of rebels to trade diamonds for weapons. Angola is now a leading member of the so-called Kimberley Process, an industry-wide effort to prevent commerce in rough diamonds by insurgent groups. Today, Angola is the world's fifth-largest diamond producer by value, and its gems are coveted for their size and purity.
But a visit to Angola's diamond heartland reveals that plenty of blood still spills over those precious stones. Here in the sprawling jungle of northeast Angola, a violent economy prevails in which thousands of peasant miners eke out a living searching for diamonds with shovels and sieves. Because they lack government permits, miners and their families say they are routinely beaten and shaken down for bribes by soldiers and private security guards—and, in extreme cases, killed.
This sort of violence, which has made headlines in nearby Zimbabwe, is threatening to tear the Kimberley Process apart. Diamond retailers can ill afford more bad publicity about tainted stones. But many of Africa's diamond-producing nations are wary about any effort to beef up the industry's policing of human rights.
Around Angola's mines, tales of confrontation abound. In an interview with The Wall Street Journal, Linda Moisés da Rosa, 55 years old, denounced the killings of her two sons, both diamond miners. In September, she said, Angolan soldiers descended on a large mine near here to chase away diggers. When some refused to leave, she said, the soldiers caved in the mine, burying alive around 45 men, including her son Pereira Eduardo Antonio, 21. "These kids were stubborn," she said, adding that the soldiers said that the killings "should serve as a lesson to anyone who wants to come dig here again".