Born in South Africa to Scottish parents, Ferguson has been involved in gemstone mining and trading for over forty years. And for a few years he was an advisor to the Colombian government. His worldwide experience extends from South Africa to Tanzania, Zambia, and Zimbabwe—not to mention Brazil, Colombia, Afghanistan, and the Pacific Basin. This has led him to many narrow escapes: he left Afghanistan days before the Russian invasion, and was arrested and jailed in Tanzania—only to be released months later after spying charges were dropped due to intense diplomatic pressure from Whitehall and Washington, D.C. Since 1990, he has been highly active in mineral-rich Madagascar.