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Mining Company Strives to Spark Demand for Emeralds, Rubies

The Wall Street Journal 20 January 2016 Zambia

Steady supply has helped foster demand, pushing Gemfields’ prices of high-quality, rough emeralds from the Kagem mine to about $60 a carat in 2015, from $4.40 a carat in 2009. PHOTO: GEMFIELDS

LUFWANYAMA, Zambia—A little-known mining company is modernizing the rough-and-tumble colored gemstone trade, hoping to generate diamond-caliber demand for its emeralds and rubies.