De Beers Group is making changes in its management lineup, with CEO Bruce Cleaver leaving his post and assuming another high-level position within the organisation by 2023.

Cleaver will become co-chairman of De Beers Group alongside Duncan Wanbald, current chairman and Anglo American chief executive. Al Cook will succeed Cleaver as CEO of the group.

In his more than six years as CEO, Cleaver has led De Beers’ transformation across the value chain. During his tenure, the group has launched the world’s largest and most sophisticated diamond recovery and exploration vessels; redesigned supply agreements with Sightholders to enhance the efficiency of rough diamond distribution; integrated the organisation’s downstream businesses; created Tracr™, the world's only distributed diamond blockchain that starts at the source; launched the Lightbox Jewelry laboratory-grown diamond business; and established and embedded the Building Forever sustainability framework across the group, including setting 12 ambitious sustainability goals for 2030. 

Cook will be tasked to continuously strengthen the group’s global business strategy. He has more than 25 years of international leadership experience, gained predominantly at BP and Equinor, most recently leading Equinor’s multi-billion dollar global E&P business across Africa, the Americas and Europe, according to De Beers. He previously led Equinor's global strategy and business development, spearheading the company’s net zero strategy.