Diamond Grading Online or In-Person Course
Master Diamond Grading with Expert One-on-One Training
Every polished diamond tells a story in its cut, colour, clarity and carat — if you know how to read it. Trained on the internationally recognised GIA 4Cs system, this course teaches you to assess polished diamonds with professional precision. Then we take you into a real jewellery store to prove it.
See a diamond
the way a grader
sees one.
Why Diamond Grading Matters
Grading isn’t just
for gemologists.
It’s for anyone who buys,
sells, or loves diamonds.
“A diamond doesn’t change when you grade it. But your understanding of it completely transforms — and so does every conversation you’ll ever have about one.”
Whether you’re a jeweller trying to advise clients with confidence, a retailer who needs to communicate value clearly, a buyer who wants to know exactly what they’re purchasing, or someone who simply fell in love with diamonds and wants to understand them deeply — grading is the foundation.
The GIA 4Cs system is the international language of diamond quality. Carat. Cut. Colour. Clarity. Every certificate, every price list, every professional conversation in the diamond world revolves around these four factors. This course teaches you to apply them — not just recite them.
And in our full in-person experience, you don’t just practice in a studio. We take you into a real jewellery store, with real inventory, and real customers — so you can see how grading knowledge becomes professional confidence in a live retail environment.
Exclusive to the Full Experience Package
The jewellery store visit.
Where grading becomes real.
Most diamond courses end at the grading table. Ours takes you one step further — into a real jewellery store where you apply your new skills on actual inventory. It’s the difference between knowing the theory and living the practice.
Choose Your Path
Digital or in-person.
Both build the same expertise.
The Digital Campus gives you the complete GIA 4Cs curriculum with lifetime access and WhatsApp mentoring — ideal if you want to learn at your own pace. The Full Experience adds a private in-person training day and the exclusive jewellery store visit that brings everything to life. Same certificate. Same recognition. Different depth of experience.
Learn at Your Own Pace
Digital Campus
R2,500
- ✓Complete 20+ topic digital curriculum
- ✓Lifetime access to online campus
- ✓Internationally recognised certificate
- ✓Interactive quizzes after each lesson
- ✓No final exam — self-paced mastery
- ✓WhatsApp expert support included
- ✓Study on any device, anywhere
- ✓Digital reference materials
Private · Margate, KZN
Full Experience
R4,500
- ✓Everything in the Digital Campus, plus:
- ✓One-on-one in-person training session
- ✓Hands-on practice with real polished diamonds
- ✓Personalised instruction tailored to your goals
- ✓Professional tool training under expert guidance
- ✓Accompanied jewellery store visit
- ✓Real-world grading in a live retail environment
- ✓Sessions tailored to your pace and background
The Foundation of Diamond Grading
The GIA 4Cs.
The international language
of diamond quality.
Developed by the Gemological Institute of America, the 4Cs are the globally accepted framework for assessing and communicating diamond quality. This course teaches you to apply all four at professional level — not just define them.
Colour
For white diamonds, colour refers to the absence of colour — from D (completely colourless) to Z (light yellow or brown). Learn to detect subtle colour differences that represent significant value shifts.
- The D-to-Z colour grading scale
- Detecting subtle colour under controlled lighting
- How colour grade affects price
- Fancy colour diamond classification
- Colour grading reports and master stones
Clarity
Clarity measures the presence of inclusions (internal) and blemishes (external). Learn to map, identify and grade these characteristics — and understand how treatments attempt to hide them.
- The FL-to-I3 clarity grading scale
- Identifying inclusions under loupe and microscope
- Diamond plotting and documentation
- Treatment detection: laser drilling, fracture filling
- How clarity interacts with cut and value
Carat
Diamond weight measured in metric carats. Understand how carat interacts with cut and shape to determine perceived size — and how weight affects price exponentially.
- Metric carat system and decimal weights
- Carat vs size — the visual relationship
- How shape affects perceived carat weight
- Weight estimation without a scale
- Price per carat and price breaks
Cut
The most complex of the 4Cs. Cut determines how light behaves inside a diamond — its brilliance, fire and scintillation. A poorly cut diamond of excellent colour and clarity can be worth far less than a well-cut stone of modest grades.
- Cut grades: Excellent, Very Good, Good, Fair, Poor
- Symmetry, proportions and light refraction
- Fire, brilliance and scintillation
- Fancy cut evaluation: pear, marquise, oval, cushion
- How cut affects market value
Beyond the 4Cs.
The full picture of
polished diamond expertise.
The 4Cs are the framework — but professional diamond grading goes much further. This curriculum covers the complete knowledge base required to work with polished diamonds at an industry level, from laboratory reports to international trade procedures.
GIA 4Cs Mastery
Complete training in Carat, Cut, Colour and Clarity using international standards.
Professional Tool Usage
Gem loupes, microscopes, and inclusion identification techniques — hands-on from day one.
Diamond Formation & Properties
Crystal growth, physical and optical properties that affect diamond characteristics and grading.
Diamond Identification
Reliable methods to distinguish diamonds from gemstone simulants and synthetic alternatives.
Fluorescence Analysis
How fluorescence behaves under UV light and its nuanced effect on diamond appearance and value.
Diamond Plotting & Documentation
Reading and creating diamond plots — the professional record of a stone’s clarity characteristics.
Cut Grade Excellence
Symmetry, proportions, light refraction, fire, brilliance, scintillation and fancy cut assessment.
Fancy Colour Terminology
Advanced colour grading techniques and the classification of fancy coloured diamonds.
Treatment Identification
Recognising clarity treatments — laser drilling, fracture filling, HPHT — and their market implications.
Laboratory Report Analysis
Reading and interpreting GIA, EGL and IGI grading reports — the documents that move the market.
Synthetic vs Natural Diamonds
Understanding simulants, lab-grown diamonds, CVD vs HPHT synthetics — and how to tell them apart.
Cutting & Polishing Process
The complete transformation from rough stone to finished diamond — planning, sawing, bruting, polishing.
Advanced Equipment
Sarine systems, OGI systems, colorimeters and professional microscopes — the industry’s high-tech toolkit.
Kimberley Process Certification
Conflict-free diamond certification — what it means, how it works, and why it matters in the trade.
Import & Export Procedures
Legal requirements and compliance for international diamond trading and cross-border commerce.
Global Value Chain & Bourses
Industry leaders, diamond bourses, international market dynamics and where polished diamonds trade.
Professional Pricing
Using Rapaport and IDEX price lists for accurate polished diamond valuation in the real market.
Mining & Origin Fundamentals
Diamond extraction, kimberlite surveying and ore recovery — the supply chain behind every stone.
Commercial Trading Strategies
Buying and selling polished diamonds — dealers, tender houses, certified loose stones and international trade.
Industry History & Major Developments
The evolution of the diamond industry — De Beers, the cartel era, modern market dynamics and where it’s heading.
Real-World Application
Read the certificate.
Then read the diamond.
Laboratory reports from GIA, EGL and IGI are the documents that move the diamond market. Every serious buyer, seller and retailer needs to read them fluently — understanding not just the grades but what they mean for a stone’s beauty and value in practice.
We teach you to read reports and then verify them with your own eyes. There’s an important difference between what a certificate says and what you see under the loupe — and understanding that gap is what separates a trained grader from someone who just read the paperwork.
In the full in-person experience, this comes alive during the jewellery store visit — where you’ll apply grading knowledge to real inventory, read the reports on display diamonds, and understand how retail pricing connects back to Rapaport and the 4Cs.
One intensive day.
A lifetime of confident eyes.
The in-person component is a focused, private session — one-on-one instruction tailored to your background, pace, and goals. Every topic is applied immediately with real stones in your hands.
Recognised Laboratory Reports We Cover
Getting Started
Everything you need
to begin is already
within reach.
No prior gemology knowledge required. No specialist equipment to buy. The Digital Campus works on any device and the in-person session provides all tools. You bring the curiosity — we provide everything else.
Any Device
Cellphone, tablet or laptop — the digital campus works on all of them, anytime.
Valid ID
Proof of identity or passport required for certificate and registration purposes.
Internet Access
A reliable connection to access your lessons, quizzes and reference materials.
Basic English
All course content is delivered in English. Zero diamond knowledge required.
Who This Course Is For
If diamonds are part
of your world, this
belongs in your toolkit.
No prior experience needed. This course is designed for anyone who works with, sells, buys or simply loves polished diamonds — and wants to engage with them at a professional level.
Jewellery Retailers
Sell with confidence
Know exactly what you’re selling. Communicate value, explain certificates, and build the kind of trust that turns enquiries into sales.
Jewellery Designers & Makers
Specify what you need
Source the right stones for your designs. Understand the grading behind certificates and make informed buying decisions for your work.
Diamond Buyers & Investors
Know what you’re buying
Protect your investment with professional grading knowledge. Read certificates fluently and assess diamonds beyond the paperwork.
Pawnbrokers & Valuators
Assess with precision
Make reliable valuations on polished stones coming across your counter. Reduce risk with grading skills you can trust.
Diamond Enthusiasts
See diamonds differently
If you love diamonds and want to truly understand what you’re looking at, this course transforms how you see every stone.
Gemology Students
Build your foundation
Complement your gemology studies with a practical, applied grading course rooted in the GIA system and real-world scenarios.
Ready to Begin?
See every diamond
with professional eyes.
WhatsApp us to enrol in the Digital Campus or book your Full Experience session. For the online course, campus access is sent within 60 minutes of payment. For in-person, we book your private session around your schedule.
DIGITAL CAMPUS
R2,500
IN-PERSON
R4,500
TOPICS
20+
ACCESS
Lifetime
LOCATION
Ramsgate, KZN
Enrolment: digital campus access within 60 minutes. In-person: book your preferred dates via WhatsApp.
You must be logged in to post a comment.