World Athletics president Sebastian Coe holds a rough natural diamond as he tours Diamond Trading Company (DTC) Botswana in Gaborone on May 4, 2026. The key activity of DTC Botswana is sorting and valuation of rough diamonds. When diamonds arrive from the mines, they are sorted into different categories according to their carat, cut, clarity, and colour. (Photo by Monirul Bhuiyan / AFP via Getty Images)