Over $70m of diamonds leave Sierra Leone every year, many smuggled out by the African country's rebel forces to fund their war against the government. After a decade that has seen thousands die, both sides are holding to a peace brokered by the UN. But, in the process, neither the UN nor Britain has regulated the diamond trade itself - the root cause of the war. Ishmahil Blagrove examines if the precious stones will ever be cleansed of African blood.