Diamonds are forever.. Or so the mining industry wants you to think. The terms was first used in 1938 when after the great depression sales of diamond started plummeting. [De Beers],(http://www.
Any colour as long as it is Black. “ Any customer can have a car painted any color that he wants so long as it is black.” Henry Ford in collaboration with Samuel Crowther in My Life and Work. 1922. Page 72 The Above words were spoken by the creator of Model T