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Photoatlas of Inclusions in Gemstones (Vol. 1) by Dr. Eduard J. Gübelin & John I. Koivula£230.00 £230.00Currently not available
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Photoatlas of Inclusions in Gemstones (Vol. 2) by Dr. Eduard J. Gübelin & John I. Koivula£240.00 £240.00Currently not available
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