> they aren't really a monopoly Yeah, this is more an example of monopolies naturally eroding. DeBeers held prices above equilibrium, and other players entered

> they aren't really a monopoly Yeah, this is more an example of monopolies naturally eroding. DeBeers held prices above equilibrium, and other players entered the market and now they don't have a stranglehold on it. (The extent of their hold on it was played up by journalists anyway...)