MUZO, Colombia — Although he has helped transform Colombia's emerald industry, long a source of violence and environmental damage, former U.S. diplomat Charles Burgess admits that he got into ...

NPR ventures into a Colombian emerald mine — which used to be more dangerous, with potential explosions inside and gunfights outside. The CEO, a... Inside the emerald mines that make Colombia a ...

An emerald miner walks into the main tunnel at the mine in Muzo, Colombia, which is large enough to accommodate heavy machinery as the industry becomes more mechanized. Most of the green gemstones ...