De Beers' most famous ad campaign marked the entire diamond industry
How an Ad Campaign Invented the Diamond Engagement Ring - The Atlantic
Origin – De Beers Group
Great Work: A De Beers Campaign
De Beers' most famous ad campaign marked the entire diamond industry
De Beers Invented Engagement Rings With an Ad Campaign - Videos - NowThis
De Beers launches new global branding campaign - Jeweller Magazine: Jewellery News and Trends
Solved Diamonds are forever. These three simple words are
The History of De Beers and Diamonds
How Americans Learned to Love Diamonds - The New York Times