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Herausgeber:
Deutsche Gemmologische Gesellschaft e.V.
Prof.-Schlossmacher-Str. 1
D-55743 Idar-Oberstein
Herausgeber:
Deutsche Gemmologische Gesellschaft e.V.
Prof.-Schlossmacher-Str. 1
D-55743 Idar-Oberstein
Single week enrollment for those who wish to concentrate on a special subject within the Diamond Grading Programme. Please mind that the sequence DG1-DG4 is obligatory.
Consisting of 4 single weeks (DG1-DG4), final exam included in DG. details...
Properties and features of diamond, basics of diamond grading, practical clarity and colour grading. details...
Practical cut grading of brilliants and other cut styles (proportions, symmetry and polish) as well as evaluation of cuts. details...
Identification of imitations, identification of synthetic and treated stones, practical grading, grading of coloured diamonds. details...
Practical diamond grading (4 C), evaluation basis and formulation of certificates and expert opinions. details...
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