San Diego-area families say they lost thousands of dollars after investing in an emerald mining operation out of Brazil. Now investors are being warned about that company's legitimacy. As Pietra Verdi ...

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 the ...

Job scarcity and the hope of striking it rich are driving women to pursue mining despite the grueling conditions. Colombian emeralds are highly valued globally, with the potential for significant ...

Elon Musk's biographer set the record straight on whether Errol Musk ever owned an emerald mine. Walter Isaacson spoke to Musk's father Errol, who told him he exchanged a plane for emeralds. Errol ...