Aslo 'Conflict gemstones': the illegal diamond trade in Africa by rebel fighters who purchase their weapons by selling these 'blood diamonds' to kill their own people.
New, 'conflict-free' diamond bourses are
established now to make sure no diamonds are going to be sold for guns, thanks to something called the 'Kimberley Process' (named after the 2000 meeting of major diamond-producing countries in
Kimberley, South Africa), that issue KPCS (Kimberley Process
Certification Scheme) certificates and offer other 'ethical alternatives' for those who lost their jobs as a result.