[1] Have you ever tried to sell a diamond? “An N. W. Ayer copywriter came up with the caption “A Diamond Is Forever” […] even though diamonds can in fact be shattered, chipped, discolored, or incinerated to ash.” The cartels peddled the fib because, apart from not being forever, diamonds weren’t even scarce. They were scared that if the public started reselling diamonds the diamond market would disintegrate. [2] See also The Scarcity Shortage.