Gemology (Practical)

Paper Code: 
25MJD 126
Credits: 
4
Contact Hours: 
90.00
Max. Marks: 
100.00
Objective: 

This course will enable the students to –

  1. Enhance the skills of gemstones identification, their crystal system, and physical, optical &chemical properties of gems, its origins they will also learn about the identification of naturally occurring gems.
  2. Study of 4 ‘C’s of diamonds, Use of various Gemology instruments and different ways and techniques of evaluating

 

Course Outcomes: 

Learning outcomes (COs):

Course

Learning outcomes

(at course level)

Learning and teaching strategies

Assessment

Strategies

COURSE Code

COURSE Title

25MJD   126

 

Gemology

 

CO25: Develop an advanced understanding of the principles and methodologies involved in identifying, sorting, and grading rough and polished precious, semi-precious, and organic gemstones. They will demonstrate proficiency in utilizing specialized equipment for gemstone identification, enabling them to discern their distinct characteristics and properties accurately.

CO26: Compile comprehensive practical records detailing plans related to jewellery design across diverse institutional settings and cultivate verbal communication skills to converse effectively with examiners.

CO27: Contribute effectively in course-specific interaction.

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

 

90.00

Uses of various instruments:                                                                        90 Hours

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

 

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 colour, clarity and cut grading criteria of gemstones

Identification of Diamond                                                               

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

 

Identification of Organic gem minerals-                            

  • Pearl, amber, coral & shell.

 

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 gemstones for presentation.

 

Essential Readings: 

·         Karanth, R.V (2008) Gemstones: Enchanting Gifts of Nature by Geological society of India Ltd.

·         Chika Yama, A. (2013) Dictionary of Gemstones &Jewellery by IMACBC Co.Ltd          

·         Matlins, A. (2009) Jewellery& Gems: The Buying Guide     

Jaffer, A. (2019) Beyond Extravagance: A royal collection of gems and jewels       by Assouline

References: 
  • Read, P. G. (2005)GemologyButterworth-Heinemann.
  • Hall, J. (2016). The crystal bible. Penguin.
  • O'Donoghue, M. (2012). Gemstones. Springer Science & Business Media.
  • Antonio C. Bonanno 2016, Jewellery& Gems, The Buying Guide, Gem Stone Press; (8thed)
  • 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: 
2025-2026
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