Introduction to Gemology

Paper Code: 
GEM-101
Credits: 
04
Contact Hours: 
60.00
Max. Marks: 
100.00
Objective: 
  • To impart the knowledge of Gemology, the formation of gemstones, crystal system, physical, optical & chemical properties & Study of 4 ‘C’s of diamonds.
  • To acquire a thorough knowledge of all precious and semi-precious stones and the ways in which they are used in jewelry.
     
15.00
Unit I: 
Introduction to Gemology
  • Definition, Attribute  of gemstone      
  • Historical significance of gems Stone
  • Coloured Gemstone Certifications
  • Gem Care and Handling    
     
10.00
Unit II: 
Gems Stones: Shapes & cuts
  • Studying Different Cuts and Shapes of Stone
     
15.00
Unit III: 
Characteristics of Gem stones :
  • Gem Crystallography & Physical Properties

Crystalline Structures & The Crystal System
Mohs Hardness Scale
Cleavage in Gemstone

  • Optical Properties of Gem Stones

Colour in Gemstones and Minerals
Refractive Index of Gemstones
Birefringence in Gemstone
Diaphaneity or Transparency in Minerals
Gemstone Enhancements & Treatments
 

10.00
Unit IV: 
Classification and Types
  • Traditional Classification
    • Precious & Semiprecious
    • Organic Gems

 

  • Synthetic and artificial gemstones
  • Mineral Classification

Silicate Mineral Class
Carbonate Mineral Class
Sulfate Class
Halide Mineral Class
Oxide Mineral Class
Sulfide Mineral Class
Phosphate Mineral Class
Element Class

  • Non-Crystalline Minerals
10.00
Unit V: 
Diamonds
  • 4c's –Color, Cut ,Clarity & Carat
  • Natural Inclusions
  • Certification
  • Manmade Diamond
     
Essential Readings: 
  1. Peter G. Read -Gemology, 2nd edition, 1999
  2. Hall, Judy-The Crystal Bible : A Definitive Guide to Crystals, Published in March 5, 2003, Walking Stick Press.    
  3. Michael O’Donoghue -Identification of Gemstones, published in January 16, 2003, Butterworth-Heinemann
     
References: 
  1. Robert Webster-Practical Gemology by Gemstones of the world by Walter Schumann
  2. Maggie Compbell Pedersen -Gem & Ornamental Materials of Organic Origin
  3. Mathur,Asharani -Diamond : Eternal Fire : The Indian Diamond Tradition    
  4. Verena Pagel,Thiesen- Diamond Grading ABC The Manual
  5. Judith Crowe, The Jeweler's Directory of Gemstones . DK Publishing.
  6. Walter Schumann, Gemstones of the World . NAG Press; 2Rev Ed edition
  7. Renee Newman, Gemstone Buying Guide . International Jewelry Publications; 2nd edition
     
Academic Year: 
2018-19
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