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Ruby Sapphire Grading Pricing, Treatments and Synthetic Identification
ENDED
Workshop by
AIGS
To give students maximum exposure to the mainstream synthetic ruby sapphires as well as their natural counterparts. Given various techniques used in separating natural, synthetic, assembled and treated ...
Bangkok
USD 1,200.00
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To give students maximum exposure to the mainstream synthetic ruby sapphires as well as their natural counterparts. Given various techniques used in separating natural, synthetic, assembled and treated ...
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