To put it simply, it's an international agreement through which all diamonds that are produced and are to be exported have a certificate to guarantee that they're not conflict minerals.
On March 1st, 2012. See this statement in context.
On March 1st, 2012. See this statement in context.
Director General, Stabilization and Reconstruction Task Force, Department of Foreign Affairs and International Trade
To put it simply, it's an international agreement through which all diamonds that are produced and are to be exported have a certificate to guarantee that they're not conflict minerals.
See context to find out what was said next.