De Beers Forevermark Black Label Oval Graduated Shoulders Diamond Engagement Ring
De Beers Lowers Global Diamond-Jewelry Estimate
De Beers Partners With Circa to Offer Natural Diamond Authentication – WWD
The De Beers Blue
De Beers diamond sales remain rapid
De Beers Jewelers Launches Line of Genderless Diamond Jewelry
The Engagement Ring Story: How De Beers Created a Multi-Billion Dollar Industry From the Ground Up
Case Study – Diamond's Demise – Principles of Microeconomics
De Beers Ups Diamond Marketing Investment to $140M This Year
De Beers to Spend $20 Million Promoting Natural Diamonds This Holiday – JCK