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The open-pit Karowe diamond mine in Botswana, which may be expanded into an underground operation, produced the most expensive rough diamond ever sold, the $63.1 million, 813-carat “Constellation.”
It’s the mine that produced the 1,109-carat chunk of rough as well as the 813-carat “Constellation” diamond.
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The communications veteran worked as a writer and editor for the trade publication when it was first established nearly 20 years ago.

The diamond came from Karowe, the mine that produced the second largest rough diamond ever found.

The CBS morning talk show just aired a segment on the gemstone that included Elizabeth Taylor, Irving Berlin and this outstanding Oscar Heyman necklace.

The “Ponderosa Sapphire,” recovered from Rock Creek last summer, will be on display in Tucson.

The diamond miner recovered the “top white” gem at its Karowe mine in Botswana.
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Since 1906, National Jeweler has been the must-read news source for smart jewelry professionals--jewelry retailers, designers, buyers, manufacturers, and suppliers. From market analysis to emerging jewelry trends, we cover the important industry topics vital to the everyday success of jewelry professionals worldwide. National Jeweler delivers the most urgent jewelry news necessary for running your day-to-day jewelry business here, and via our daily e-newsletter, website and other specialty publications, such as "The State of the Majors." National Jeweler is published by Jewelers of America, the leading nonprofit jewelry association in the United States.

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