Remember conflict diamonds? We sometimes call them blood diamonds because that sounds metal as all get out. Surely you remember that Leonardo DiCaprio made a movie about them, if nothing else. Or maybe I'm wrong and you know next to nothing about anything. If that's the case, the elevator pitch is that conflict/blood diamonds are stones that are sourced from mines that fund armed conflict and various other types of atrocities in Africa.
The problem first received widespread attention when an organization called Global Witness published a report in 1998 about the role diamonds played in a deadly conflict in Angola, which had been raging for an entire decade by that point. In other words, if you got married between 1988 and 1998, your ring probably killed and/or created a child soldier.
Way to go, jerks.
That last part was a joke, but also kind of true, and no one wants that kind of thing on their conscience. Public outcry for the diamond industry to change its ways could not be ignored. So, in 2000, South African diamond-producing states met up in Kimberley, South Africa, to discuss ways to stop the flow of blood diamonds into the legitimate gem market. What they came up with is called the Kimberley Process.