De Beers Group - Overview, News & Competitors
De Beers unfazed by competitors fancying their chances in Botswana
De Beers strategy presentation 2005
De Beers: Diamond prices per carat 2022
end of de beers monopoly
The De Beers Group of Companies: Revenue, Competitors, Alternatives
De Beers Case Debrief - DeBeers controls about of diamond industry
The Evolution of De Beers' Strategy - Rapaport
Diamonds Are Forever,' and Made by Machine - The New York Times