http://www.theatlantic.com/magazine/archive/1982/02/have-you-ever-tried-to-sell-a-diamond/304575/ http://www.theatlantic.com/magazine/archive/1982/02/have-you..

http://www.theatlantic.com/magazine/archive/1982/02/have-you-ever-tried-to-sell-a-diamond/304575/ http://www.theatlantic.com/magazine/archive/1982/02/have-you... has some details on the ad campaigns.