Enhance your knowledge of diamond grading with GIA Diamond Grading Course Audio Tapes from 1991. This set of 22 cassette tapes covers a variety of topics related to diamond grading and education. The tapes are in the cassette format and the language used is English. The publication name is GIA Diamond Grading and the author and publisher are GIA. The subject area is Education and the subject is Study Guides & Test Prep. This set of tapes is perfect for anyone who wants to expand their knowledge in diamond grading.
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