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Sotheby’s HK Expects $19M for Rare Blue Diamond
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Sotheby’s is expecting to sell a 7.59-carat, fancy vivid blue diamond for approximately $19 million, or $2.5 million per carat, at its Hong Kong auction on October 7. The diamond, which has been named ''The Premier Blue''...
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Polished Markets
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Aug 20, 2013
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Sonya Burlan
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GIA Symposium 2011 Day 2
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The second day of the annual Gemological Institute of America (GIA) Symposium began Monday morning with a series on gemstones. The first part of the event discussed color stones and pearl identification, followed by a forum on the...
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Research
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May 30, 2011
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Ricci Dipshan
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