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Come to where the knowledge is! Deutsche Gemmologische Gesellschaft eV (German Gemmological Association)

Coloured Stones Programme

Single week enrollment for those who wish to concentrate on a special subject within the Coloured Stones Programme. Please mind that G1 and G2 have to be completed before choosing any of the other courses G3-G10. Please mind that G11 can only be visited after completion of G1-G10. Please mind that G12 can only be taken part in after completion of G1-G11.

Coloured Stones Programme

Consisting of 11 single weeks (G 1-G 11) plus three days exam (G 12). Includes a 10 % discount of the total fee for G 1-G12.

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5.650,00 €

G1 Introduction to Gemmology

General definitions, formation, properties and features as well as application of gemstones.

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550,00 €

G2 Basics of Gem Identification

Structural, chemical and physical properties of gemstones and basis of investigation methods.

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550,00 €

G3 Advanced Gem Identification

Practical use of gemmological testing instruments.

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550,00 €

G4 Intense Gem Identification

Practical identification of gemstones and imitations.

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550,00 €

G5 Specific Gem Identification 1: Corundum

Occurrences, properties, identification, synthetics and imitations as well as treatment of ruby and sapphire.

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550,00 €

G6 Specific Gem Identification 2: Beryl

Occurrences, properties, identification, synthetics and imitations as well as treatment of emerald and other beryl varieties.

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550,00 €

G7 Specific Gem Identification 3

Occurrences, properties, identification, synthetics and imitations as well as treatment of diamond, chrysoberyl, spinel, quartz and opal.

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550,00 €

G8 Commercial Gemmology

Criteria of gemstone evaluation and types of workmanship around gemstones.

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550,00 €

G9 Specific Gem Identification 4

Occurrences, properties, identification, imitations and treatment of peridot, garnet, zircon, topaz, zoisite, tourmaline, spodumene, etc.

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550,00 €

G10 Specific Gem Identification: Opaque gemstones and mounted gemstones

Properties, identification, imitations and treatment of turquoise, jade, lapis lazuli, feldspar, quartz etc., methods and practical identification of mounted gemstones.

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550,00 €

G11 Preparation course for the Coloured Stones final exam

Preparation of written gemstone reports, nomenclature, theoretical and practical preparation for the coloured stones final exam.

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550,00 €

G12 Coloured Stones final exam

Coloured Stones final exam.

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275,00 €

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