What is the fine-grained topic of the following text: The Kimberley Process, which launched in 2003, is a joint initiative of governments, non-governmental organizations and the diamond industry, which imposes certification requirements on its members aimed at ensuring that ‘conflict-diamonds’ (which are those used by rebel movements or their allies to finance conflict), do not enter the mainstream market. Only return the topic.
The Kimberley Process and conflict-diamond regulation