We recently received a group of unheated rubies from Myanmar, Mong Hsu. They all have deep blue color zoning, combining with clouds of fine exsolved diaspore particles; heat treatment will remove the blue zoning.
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We recently received a group of unheated rubies from Myanmar, Mong Hsu
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Koninklijk Instituut der Eliten van den Arbeid (KIEA) awarded the Gold Medal for Expert in Diamond !
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ALGT in the Munich Show
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