Coloured Gemstones Identification Course (CGIC)

Module I

• Gemology

• Minerals

• Categories of Gemstones

• General Observations

  Colour, Transparency

Cutting Style, Phenomena

Luster, Dispersion, Heft

Assembled Stones

• Physical characteristics

• Crystallography

• Light Theory/ Polarization

Module II

• Inclusions- Characteristic/ Diagnostic

• Equipments

• Group/Specie/Variety

• Gemstone Study

  Practical Study of Minimum 850 Stones

• Identification of Mines/ Sources

• Identification of Synthetics

  Flame Fusion/Verneuil Process

  Pulled / Czochralski,

  Skull Melt

  Flux

           Hydrothermal / Bomb

           Stones Synthesized

Characteristics/Manufacturers

Identification techniques

• Gem Enhancement Techniques

• Heat, Radiation, Chemical Diffusion

  Fracture Filling, Bleach, Surface Modification

  Surface Impregnation, Laser Drilling

Module III (Advanced)

• Fluorescence

• Pricing/ Valuation

• Treatments

• Market Terms/ Indian Trade