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The diamond, a gemological exception

You will: discover this fascinating stone, its unique chemical composition, understand the secrets of color and clarity, as well as the savoir-faire of cut.

You will handle stones and learn to use gemological tools.

Duration : 2 hours

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价格 : 100 €

本课程目前已暂停。我们将通过电子邮件告知您即将开设的课程。

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