The Rod Martin Report

The Rod Martin Report

Geopolitics, Tech & Markets

The Spectacular End of the Diamond Cartel

De Beers built an empire on scarcity and sold it as romance. Now lab-grown diamonds offer the same gem at a fraction of the price. But that’s a side-effect of an even bigger revolution.

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Rod D. Martin and Guest Author
Nov 14, 2026
The Spectacular End of the Diamond Cartel
An employee of De Beers Canada holds a 12.8-carat diamond at their facility in Calgary on July 6, 2016.

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NOTE: I have been following this story for 25 years. It has finally come to fruition. The unique and extraordinary value of the diamond is no more, in much the same way that the most precious of metals 150 years ago — aluminum — is precious no more. Technology advanced. Cost collapsed. And what was once dear is suddenly a mere commodity.

In the case of diamonds, as with aluminum, the value of that commodity is immense, just not something anyone will still call “precious” ten years hence. Manufactured diamonds have unlocked a range of high-tech applications that were previously impractical if not impossible, due to scarcity, cost, size limits, and uncontrolled impurities or defects.

Indeed, the mass-produced version turns out to enable quantum computing, vastly improved thermal management for AI chips, high-po…

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