Guinea has large reserves of diamonds, with 30 to 40 million carats of proven reserves as well as 500 million carats of probable reserves.

Guinea has significant diamond reserves – KPMG, Guinea Country Mining Guide

The deposits are mainly located in the Banankoro-Sefadou area, in the east of the country.

Guinea is an active member of the Kimberley Process, an international initiative of certification for rough diamonds designed to promote transparency in the sector.