Here is the article that talks about the De Beers marketing plan that created the concept of a diamond engagement ring. http://www.theatlantic.com/internationa

Here is the article that talks about the De Beers marketing plan that created the concept of a diamond engagement ring. http://www.theatlantic.com/international/archive/2015/02/how-an-ad-campaign-invented-the-diamond-engagement-ring/385376/ http://www.theatlantic.com/international/archive/2015/02/how...