(Photo by Monirul Bhuiyan / AFP)

(Photo by Monirul Bhuiyan / AFP)

(Debswana Diamond Company/Handout via REUTERS)

(Debswana Diamond Company/Handout via REUTERS)

Botswana, la First Lady Neo Masisi insieme al Presidente Mokgweetsi Masisi (Photo by Monirul Bhuiyan / AFP)

Botswana, la First Lady Neo Masisi insieme al Presidente Mokgweetsi Masisi (Photo by Monirul Bhuiyan / AFP)

Botswana, il Presidente Mokgweetsi Masisi (Photo by Monirul Bhuiyan / AFP)

Botswana, il Presidente Mokgweetsi Masisi (Photo by Monirul Bhuiyan / AFP)

Botswana, il Presidente Mokgweetsi Masisi (Photo by Monirul Bhuiyan / AFP)

(Photo by Monirul Bhuiyan / AFP)

(Photo by Monirul Bhuiyan / AFP)

(Photo by Monirul Bhuiyan / AFP)