Blood diamonds get their name from the fact that they are used to fund military action in opposition to legitimate governments.
This is a fantastic site to get up to date on the fight against blood diamonds.
I pretty much owe all the information in this blog to the data at the link above.
Today, over 99% of the world’s supply of diamonds is from sources free of conflict thanks to the Kimberly Process Certification System.
The movie Blood Diamond is a fantastic one to understand the implications of the trade in conflict diamonds.