Short Term Courses

1. SHORT TERM CERTIFICATE COURSE IN GEM IDENTIFICATION

Hands on Practical Approach with theory for clarity in concepts

SYLLABUS:

1. Need & introduction for Gemmology
2. Visual Observation and Sight Identification of Gems
3. Gem testing Instruments and their application
4. Gemstone treatments and synthetics
5. Rubies and red simulants
6. Blue Sapphires and their simulants
7. Yellow Sapphires and their simulants
8. Emeralds and Green simulants
9. Hessonite Garnet and Simulants
10. Chrysoberyl Cat’s Eye and Simulants
11. Mixed Identification

2. POLISHED DIAMOND GRADING

SYLLABUS

1. Need for international grading
2. 4 C’s grading as per international standards
3. Comparative grading systems
4. Round Brilliant Cut, Parts and Comparative Ideal Cuts
5. Carat Estimation
6. Clarity Grading
7. Colour Grading
8. Cut Grading Overview – Styles of Cut, Proportions, Polish & Symmetry
9. Identification

(Applicable for a batch of minimum 2 students)

Duration : 30 hours – 10 days
Days : Mon – Fri.
Timings : 2.30 pm – 5.30 pm (daily 3 hours for 10 days) (Monday to Friday)

3. ROUGH DIAMOND ASSORTMENT

• How and Where are diamonds formed?
• The characteristics of a diamond.
• Identification criteria of a diamond.
• Diamond Journey From Mines to Market
• Mining and Extraction
• Big Mining Corporations & Sights
• World famous diamonds
• Diamond Crystal Structure and Properties
• Crystallography
• Chemical Physical & Optical Properties of a diamond
• Manufacturing Process

1. Introduction to rough diamond assorting and its importance
2. Sorting Systems : The Classification of rough diamonds
   • Gem diamond – Near Gem diamond – Industrial diamond
   • Makeable – Sawable – Cleavables
3. External Features of a rough diamond :
   • Shapes
   • Twin Crystals
   • Combination of forms
   • Surface Markings
   • Other relevant features
4. Internal Features of a rough diamond :
   • Inclusions found in diamonds
   • Indian Terms for inclusions
   • Colour
   • Cut / Shape
   • Yield
   • Expected Inclusions after Cutting and Polishing
   • Grade
5. Planning of Rough Diamonds :
   • RBC
   • Fancy
   • Sawables
   • Cleavables
   • Calculation of yield in rough and price per carat of cut and polished diamonds.
   • Understanding the manufacturing process from rough to finish
6. Cleavables, Yield, Makeables – Practical
   • Clean
   • Operation Clean
   • Fine Inclusions
   • Medium Inclusions
   • Heavy Inclusions
   • Flat
   • Fancy
   • Rejection
   • Natts
   • Mix Stones
   • Sawables
   • Cleavables

Practical Approach

• Use of diamond scales for weighing rough diamonds.
• How to use diamond sieves.
• Pricing Information.
• How to sort a packet of rough diamonds in a tray.
• At a Glance to judge, how good or bad is a diamond packet.
• Understanding a single packet of stones of rough diamonds by the use of light and optivisor.
• Mixed Parcel : Practical