Columbian Emeralds?

Muzo and Cosquez, two of the three most important Colombian emerald mines, are running out of rough. Unless modern exploration techniques are put to work soon, dealers will have to look elsewhere for fine quality emeralds. This startling news was not the crisis that Colombian and international emerald wholesalers expected to confront at the First World Emerald Congress, held in Bogota this past February. Their thoughts were on the treatment “crisis” – on whether emeralds should be enhanced and whether the use of synthetic resin fillers has caused the fall in emerald prices. But low-key mineralogical presentations turned the spotlight from treatment to supply. It was a rude awakening for the trade. Rightly so. About 60% of the world’s finest emeralds come from the Muzo, Cosquez and Chivor mines, with Muzo and Chivor yielding the best of the best. But recent recovery at Muzo an
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