Gachala Emerald: Difference between revisions
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Revision as of 19:07, 23 October 2006

The Gachala Emerald, an uncut 5-cm emerald crystal weighing 858 carats (172 g). The stone was found in 1967 at Vega de San Juan mine in Colombia and is named after the mining district where it was discovered. It was donated to the Smithsonian Institution by the New York jeweler, Harry Winston.