About This Course
The International Diamond Grading System Valuation Course at Rishta Diamond Institute, the best diamond
institute in Surat, is a comprehensive 370-hour business-level diploma based on
international diamond grading standards (GIA-style grading). This course is
perfect for students who want to work internationally or with globally standardised diamond
grading and valuation.
This international diamond grading course in Surat covers the most complete
diamond cut measurement system including T.Ex. (Triple Excellent) cut grading through eyeglass
proportion analysis, Heart & Arrow grading, fluorescence identification,
Rapaport price system, and complete buying/selling regulations — making it one of the most
globally relevant diamond courses available in Surat, Gujarat.
Whether you want to work with international diamond houses, export companies, or certification
labs, this international diamond grading diploma from Rishta Diamond Institute
— the best diamond grading institute in Surat — gives you the world-class foundation needed to
succeed.
Who Should Enroll?
Students targeting
international diamond careers
Diamond exporters
needing international standards knowledge
Aspiring gemologists
based in Surat
Diamond professionals
upgrading to global standards
Anyone working with
certified diamonds (GIA, IGI, HRD)
Students wanting the
most comprehensive valuation diploma
What You Will Learn
T.Ex. Cut grading through eyeglass
proportion analysis
Full cut measurements: table,
crown, pavilion, girdle, depth
Heart & Arrow diamond
grading
Fluorescence identification
International color & clarity
grading (GIA scale)
Rapaport system with discount/back
pricing
Certified & non-certified diamond
valuation
Diamond market regulations &
trading theory
Course Curriculum
- Introduction to International Diamond Grading
- Guidance for Handling Lab Equipment
- Basic Knowledge of Polish Diamond
- Internal & External Defect Theory – Local & International Words
- Internal & External Defect Master Pcs
- How to Plot the Defect of Diamond
- How to See a Diamond – Theory
- Diamond Cut Master Pcs
- How to Identify Diamond Basic Cut Quickly – Practical
- How to Use Tweezer Easily with Diamond Cut Report
- How to Identify T.Ex. Cut Diamond through Eyeglass Proportion: Table Size,
Crown Angle, Crown Height, Girdle Thickness, Pavilion Depth, Pavilion Angle,
Total Depth, Polish Defect = Diamond Finishing, Symmetry Defect, Facet
Symmetry, Proportion Symmetry, Grading System of Cut/Polish/Symmetry, Heart
& Arrow Grading, Fluorescence Identification
- International Color Grading Knowledge
- International Clarity Grading Knowledge
- Carat (Weight)
- Pointer / Solitaire Diamond Valuation
- Certified Diamond Valuation
- Non-Certified Diamond Valuation
- Knowledge of Rapaport with Back (Discount) System
- Real, American Diamond & Moissanite Theory Knowledge
- Real, American Diamond & Moissanite Practical Knowledge
- Theoretical Knowledge of Rules and Regulation of Diamond Market
- Knowledge of Buying and Selling Theory
Frequently Asked Questions
Is this course equivalent to GIA certification?
This course teaches international diamond grading standards based on GIA
methodology. While it is not a GIA-issued certificate, it provides comprehensive training in
internationally recognised diamond grading and valuation methods. The certificate from Rishta
Diamond Institute is recognised by diamond employers across Surat and India.
What is T.Ex. cut grading and why is it important?
T.Ex. (Triple Excellent) refers to diamonds that receive Excellent grades in Cut,
Polish and Symmetry — the highest quality classification. This course teaches you how to
identify T.Ex. diamonds through eyeglass proportion analysis, a skill that makes you highly
valuable in international diamond trade.
Can I work internationally after this diamond grading course in Surat?
Yes. The international grading standards taught in this course are recognised
globally. Graduates from Rishta Diamond Institute have gone on to work in India's diamond export
sector and with international diamond houses.
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