50kg emerald mined in Zambia miningnews - Africa - November 15, 2021 Victor Kalesha poses with the largest emerald piece produced in Zambia at Grizzly mine, weighed 50kg. miningnews 6 views 19 secs 0 Comments Victor Kalesha- President for the Emerald and Semi-Precious Stones Mining Association of Zambia- ESMAZ and CEO Chumwe Mining Limited. Emerald washing plant in Zambia PREVIOUS Are these mines being held for speculative purposes? NEXT Zimbabwe Institute of Foundries (ZIF) profile