This is a good article on that phenomenon: http://www.theatlantic.com/magazine/archive/1982/02/have-you-ever-tried-to-sell-a-diamond/4575/ http://www.theatlant

This is a good article on that phenomenon: http://www.theatlantic.com/magazine/archive/1982/02/have-you-ever-tried-to-sell-a-diamond/4575/ http://www.theatlantic.com/magazine/archive/1982/02/have-you...