Gem & Jewellery Mentors



Coloured Gemstones & Identification Course (CGIC)



4 months | 5 days a week | Tues to Sat | Advanced Level
Grading | 5 C's | Carat | Clarity | Colour | Cut | Country of Origin | Synthetics | Identification | Valuation | Treatments | Market Terms



Get the trade oriented training with true, ethical and professional lab standards from India's First Master Trainer by the G&J S council of India with 37 years of Jewellery trade experience as legacy & adding 17 years of teaching experience.



Module 1



  • Gemology
  • Minerals
  • Categories of Gemstones
  • General Observations
    • Colour
    • Transparency
    • Cutting Style
    • Phenomena
    • Lustre
    • Dispersion
    • Heft
    • Assembled Stones
  • Physical characteristics
  • Crystallography
  • Light Theory/ Polarization


Module 2 - 5C's Practicals



  • 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 3 - advance



  • Fluorescence
  • Pricing/ Valuation
  • Treatments
  • Market terms/ Indian Trade ​


Links....


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DGL

DELHI GEM & JEWELLERY INSTITUTE

2021, Bank Street Karol Bagh New Delhi 110005 India

ph: 91-9811267001,

91-9818246317

alt: 91-11-41546317

info@gemologyindia.com

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