And it's not just a problem in Ghana. "Nightline" obtained hidden camera footage shot by the African journalist Sorious Samora. His own upcoming film documents illegal transactions in New York City.
"No system is perfect and we must continue to try as an industry to make it so," De Beer's Stephen Lussier conceded.
From Marilyn Monroe to James Bond, Hollywood has sold plenty of diamonds in its day. So perhaps it is only fair that with "Blood Diamond," the silver screen is now stripping away some of the romance.
For more information on Global Witness, click here.
For more information on "Blood Diamond," click here.
For more information on conflict free diamonds, and the Kimberley Process, visit DiamondFacts.org.