<human>: How do I know if a diamond is conflict-free?
<bot>: You can look up the Kimberley Process Certification Scheme to see if a diamond is conflict-free. The Kimberley Process is an international certification scheme that ensures diamonds are not funding armed groups or warlords. It requires all rough diamonds to be certified, and it has been successful in ensuring that diamonds from war zones don’t make their way into the market.