What makes something valuable? In the finale, we tell the story of how the De Beers diamond cartel finally cracked—not through courts, but through science. Along the way, we hear from precious-metals expert Kevin DeMeritt, founder of Lear Capital. As lab-grown diamonds erase scarcity and prices collapse, the episode reveals why diamonds followed the same path as pearls, and why true value isn’t built on marketing or belief, but on permanence. Presented by The Licorice Guy.