Gemology and Valuation

Paper Code: 
JWT 504(A)
Credits: 
8
Contact Hours: 
120.00
Max. Marks: 
100.00
Objective: 

This course will enable the students to –

  1. Enhance the skills of  the  formation of gemstones, their crystal system, physical, optical & chemical properties-Study of 4 ‘C’s of diamonds, Use of various Gemology instruments.

Learning outcomes (COs):

Course

Learning outcomes

(at course level)

Learning and teaching strategies

Assessment

Strategies

Paper Code

Paper Title

JWT 504(A)

 

Gemology and Valuation

The students will –

CO96: Use basic gemological instruments.Classify gemstones (natural gemstone, synthetic gemstone, manmade gemstone and assembled gemstone.)

CO97: Learn about different gemstone testing equipment and the use of this equipment for the purpose of gemstone identification.

CO98: Analyse different properties of gemstones which will be helpful in their identification.

CO99: Learn in detail about all the materials which are of an organic nature and are considered gemstones.

Approach in teaching: Interactive Practical Sessions , Theme board  , Demonstrations ,Giving tasks, Field practical , inspiration board,  Workshop ,  Laboratory industry visits,  Group and Team work

Learning activities for the students: Self-learning assignments, Effective , Product and Design development

Class test, Semester end examinations, Assignments, Presentation, Individual and group projects

 

20.00
Unit I: 
Uses of various instruments:

                                                   

  • Refract meter, Polariscope, Microscope, Spectroscope, Ultraviolet lamp, Hardness pencil, Diamond probe, Chelsa filter, 10x lens. MM Watch, optimizer, sieve etc

 

20.00
Unit II: 
Identification, Sorting and Grading Of Stones.

                      

  • Rough and polished gems
  • Synthetic and stimulant gems,
  • Absorption Spectrum.
  • Defects in gem minerals
  • Flaws and inclusions.
  • Recognize the color, clarity and cut grading criteria of gemstones

 

30.00
Unit III: 
Identification of Diamond

                                                    

  • Natural and synthetic diamond,
  • Quality of diamond
  • Inclusions in Diamond and their significance

 

20.00
Unit IV: 
Identification of Organic gem minerals-

             

  • Pearl, amber, coral & shell.

 

30.00
Unit V: 
Assortment and evaluation

                               

  • Rough stones
  • Cut and polished
  • Stone single stone
  • Packet lots
  • Unusual stones
  • Collect just a bunch of pictures of common and rare gems with a few bullet points on each, & collect some approachable gem stones for presentation
Essential Readings: 
  • Read, P. G. (2005). Gemmology. Butterworth-Heinemann.
  • Hall, J. (2016). The crystal bible. Penguin.
  • O'Donoghue, M. (2012). Gemstones. Springer Science & Business Media.
  • Antonio C. Bonanno 2016, Jewelry & Gems, The Buying Guide, Gem Stone Press; (8th ed)
  • Weinstein, M. (2013). Precious and semi-precious stones. Read Books Ltd.
  • Pedersen, M. C. (2004). Gem and ornamental materials of organic origin/by Maggie Campbell Pedersen

 

Academic Year: 
2021-2022
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