Dulling the sparkle: the diamond market's transparency challenge
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The History of De Beers and Diamonds
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How an Ad Campaign Invented the Diamond Engagement Ring - The Atlantic
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De Beers Forevermark moves into the UK diamond retail market – De Beers Group
The Secrets To DE BEERS JEWELLERS' DIAMOND IS FOREVER - A Case Study
De Beers Prepares To Spend $140 Million On Diamond Jewelry Advertising
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