Tom Moses, GIA executive vice president and chief laboratory and research officer, examining the 2,488.32 carat Motswedi diamond at the GIA laboratory in Gaborone, Botswana, in July 2025. © GIA; photo by Wuyi Wang.
Tom Moses, GIA executive vice president and chief laboratory and research officer, examining the 2,488.32 carat Motswedi diamond at the GIA laboratory in Gaborone, Botswana, in July 2025. © GIA; photo by Wuyi Wang.