The Oppenheimers own most of the world’s gold reserves. The first person in the clan, Ernest Oppenheimer, moved to Kimberley, South Africa where he became the mayor of the town and then the head of one of the diamond companies. Soon, he monopolized the world diamond market.

Now, the diamond empire is ruled by Ernest’s grandson Nicky Oppenheimer. The family produces and sells not only diamonds but also gold, iron, platinum, and industrial minerals.