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Gemological Institute of America
> Gemological Institute of America (GIA)
Gemological Institute of America (GIA)
title
ISBN-13
(ISBN-10)
year of publication
Gem Reference Guide
978-O-87311-O19-8
(O-87311-O19-6)
1988
G. A.
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G.I.A
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G.O.
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I.A.
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o.A.
Gen-Ichi Matsumoto