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Rubies & Sapphires, Fourth Edition
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38.00
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Gemstones of the World: Newly Revised Fifth Edition
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30.00
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Gems, Sixth Edition 6th Edition by Michael O’Donoghue (Editor)
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210.00
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Diamond Grading ABC The Manual.
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107.00
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Ruby & Sapphires – Treatment and Identification
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56.00
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Gem Care by Fred Ward
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38.00
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Pearls by Fred Ward
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