If you plan to enter the rough diamond industry, this course provides the essential foundation for making profitable, risk-managed buying decisions. Valuing a rough diamond requires predicting its final polished outcome – estimating potential carat yield, colour, clarity, and the optimal cut model before any manufacturing begins.
To give you a complete commercial advantage, this course first teaches you how to accurately grade and value cut and polished diamonds. This ensures that while you wait for your Rough Diamond Dealer’s License approval, you already possess the market-ready skills to start trading polished diamonds immediately.
Course Content
- Polished-to-Rough Valuation Methodology: Master how to evaluate a rough crystal by accurately predicting its polished yield, colour grade, clarity outcome, and cut efficiency.
- Rough Diamond Evaluation & Sorting: Learn to analyse rough crystal morphology, surface features, strain patterns, and internal inclusions to determine structural integrity and value.
- Immediate Trade Utility: Gain practical knowledge to buy and sell cut and polished diamonds confidently while awaiting licensing or building your trading operations.
- Commercial Buying Confidence: Avoid costly overvaluations by learning how to calculate realistic profit margins based on current market pricing and polished recovery expectations.
Course Format & Structure
This course uses a hybrid learning model to combine fundamental theory with real-world hands-on practice:
- Online Learning Modules: Master theoretical diamond optics, polished grading parameters, rough crystal classification, and yield calculations at your own pace.
- 1-Day Practical Workshop: Gain live, hands-on experience evaluating real rough and polished diamonds under expert supervision at our college in Cape Town.
Course Details
Format: Hybrid (Online Theory + 1-Day Cape Town Practical Workshop)
Location: Academy of Gemmology College, Claremont, Cape Town
Prerequisites: None required. Ideal for aspiring rough diamond dealers, prospective license applicants, investors, buyers, and gemmologists.



