The United Nations has come out to prevent and restrain by certification from the government named "Kimberly Process" for the government of each country that diamond output.Because of this certificate are the details of every step in the production of diamond from the mine to sales people. So the customer to buy a diamond through to cut.Conflict diamond country agreed to participate in Kimberly Process will not be allowed to trade with other countries not members. It is believed that this project helped reduce the outflow of conflict diamond.71 country and independent several participating entities.