Truth or Myth: Diamonds Are Rare

MYTH.
Diamonds are one of the most common gemstones on Earth. They are found on every continent, mined in dozens of countries, and exist in quantities large enough that the entire market for them would collapse if the supply were ever allowed to flow freely. That it hasn't is the result of one of the most successful long-running cons in commercial history.

In the 1870s, enormous diamond deposits were discovered in South Africa, threatening to flood the market and crater prices. A British businessman named Cecil Rhodes responded by buying up nearly every major mine on the continent and consolidating them under a single company: De Beers.By the early 20th century, De Beers controlled roughly 90% of the world's rough diamond supply.The company then carefully rationed how many diamonds reached the market, stockpiling surplus stones whenever supply threatened to exceed demand. Scarcity was not a geological fact. It was a managed fiction.

The cultural mythology was equally manufactured.Before 1938, diamond engagement rings were not a widespread tradition in America. That year, De Beers hired the ad agency N.W. Ayer & Son to change that. The campaign produced the slogan "A Diamond Is Forever" in 1947 — still ranked as one of the most effective advertising lines ever written — and within decades, diamond engagement rings went from a minority custom to an assumed social obligation. The percentage of American brides receiving diamond rings rose from roughly 10% in the 1930s to over 80% by the end of the century.

The Daily Brief notesthat the artificial scarcity began to unravel when lab-grown diamonds — chemically identical to mined ones — entered the mass market. De Beers, unable to distinguish its product from a synthesized replica, eventually began selling lab-grown diamonds itself.

Rare, eternal, irreplaceable: all marketing. The diamond is just compressed carbon. The ring is real. The scarcity never was.