February 24, 2013
Except for those few stones that have been destroyed, every diamond that has been found and cut into a jewel still exists today and is literally in the public's hands. Some hundred million women wear diamonds, while millions of others keep them in safe-deposit boxes or strongboxes as family heirlooms. It is conservatively estimated that the public holds more than 500 million carats of gem diamonds, which is more than fifty times the number of gem diamonds produced by the diamond cartel in any given year. Since the quantity of diamonds needed for engagement rings and other jewelry each year is satisfied by the production from the world's mines, this half-billion-carat supply of diamonds must be prevented from ever being put on the market. The moment a significant portion of the public begins selling diamonds from this inventory, the price of diamonds cannot be sustained. For the diamond invention to survive, the public must be inhibited from ever parting with its diamonds.- Have You Ever Tried to Sell a Diamond?, via Slate.
In developing a strategy for De Beers in 1953, N. W. Ayer said: "In our opinion old diamonds are in 'safe hands' only when widely dispersed and held by individuals as cherished possessions valued far above their market price." As far as De Beers and N. W. Ayer were concerned, "safe hands" belonged to those women psychologically conditioned never to sell their diamonds. This conditioning could not be attained solely by placing advertisements in magazines. The diamond-holding public, which includes people who inherit diamonds, had to remain convinced that diamonds retained their monetary value. If it saw price fluctuations in the diamond market and attempted to dispose of diamonds to take advantage of changing prices, the retail market would become chaotic. It was therefore essential that De Beers maintain at least the illusion of price stability.