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Diamonds:
rough and polished.
Diamond grading.

Алмаз и его свойства. Ограненный алмаз: формы и элементы огранки. Бриллианты и свет. Оценка бриллиантов. Системы экспертной оценки.

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Gemological equipment for diamond grading and identification

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Diamond grading. International experience
Оценка бриллиантов по системе GIA.

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Old cuts and recutting

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Russian diamond grading system

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Correlation between different grading systems.

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Diamond jewelry

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Diamond imitations,synthetic and treated diamonds

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Diamond evaluation

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Diamond certification

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World diamond market

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Diamond Cut Study in MSU

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Appendix

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Most interesting links