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Search Results - gemstones, November 2017
your search of 'gemstones, November 2017' has 1 result.
27/11/2017
• Talia Paz • Staff Journalist
A stand-alone opal guide is set to be implemented by CIBJO five years after it was first raised at the Moscow Congress in 2013, and following it being formalised by delegates earlier this month.
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