Add Yahoo as a preferred source to see more of our stories on Google. Photo Illustration by Luis G. Rendon/The Daily Beast/Getty Elon Musk insists the emerald mines he once boasted about never existed ...

Gemfields will lobby the Zambian government reverse a newly reinstated export duty on precious stones, as its share price stumbles on fears for its Kagem Mining operation in the country. The new ...

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The world's largest producer of the green stones has unearthed a 5,655-carat emerald crystal at its mines in Zambia. The stone, which weighs more than 1.1 kg (almost 2.5 lbs), was found at the ...

LONDON (Reuters) - African miner Gemfields has launched production at a trial underground mine in Zambia that it says could transform emerald mining by boosting efficiency and making more deposits ...