It seems likely to me there was a key person at some point in the past that determined the core strategies of things like “maintain a full monopoly with highly inflated prices” and “pay off Hollywood producers to show engagement rings as this super important thing” and such, in ways that most others would not have, and that diamond profitability is through the roof versus the counterfactual. But I’m guessing that most of the credit for that was then reaped by subsequent managers (CEOs, VPs of Marketing, and so on down the line) of DeBeers, who were mostly cashing in on that good strategy.
It seems likely to me there was a key person at some point in the past that determined the core strategies of things like “maintain a full monopoly with highly inflated prices” and “pay off Hollywood producers to show engagement rings as this super important thing” and such, in ways that most others would not have, and that diamond profitability is through the roof versus the counterfactual. But I’m guessing that most of the credit for that was then reaped by subsequent managers (CEOs, VPs of Marketing, and so on down the line) of DeBeers, who were mostly cashing in on that good strategy.