Diamond Education - Become a Diamond Dealer
South Africa's Premier Diamond Education
We provide world-class diamond education trusted by major mining companies, government agencies, and jewelry professionals worldwide.
Enter the Diamond Industry
31 Years of global expertise, diamond education and industry mastery, and a passion for for excellence – turning knowledge into power at the trading table.
Start-up your own diamond business today!
Your Diamond Education Journey begins here…
Our Diamond Education Approach
Experience the difference of our personalized, practical approach that has successfully trained professionals for major mining companies and government agencies worldwide.
For over two decades, we have been at the forefront of the diamond industry, shaping its landscape and setting the standard for excellence. Since our establishment in 1998, we have remained steadfast in our commitment to quality, integrity, and innovation, earning the trust and respect of clients and colleagues alike.
From our humble beginnings to our current standing as a respected leader in the field, our journey has been defined by a relentless pursuit of excellence. With a deep-rooted passion for diamonds and a dedication to skills transfer, we have consistently delivered exceptional services that exceed expectations. At the heart of our business lies a steadfast commitment to integrity and transparency. Guided by ethical principles and a deep respect for our industry, we have built enduring relationships based on trust, honesty, and mutual respect.
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Personalized Learning
No two students are alike. We tailor every program to your specific goals, learning style, and career objectives for maximum impact.
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Hands-On Practice
Learn by doing with real diamonds, professional equipment, and practical exercises that mirror real-world industry scenarios.
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Flexible Delivery
Choose from online, in-person, or blended learning options. We work around your schedule, not the other way around.
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Industry Standards
All training meets international standards and is recognized by major industry players and gemological institutes globally.
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Ongoing Support
WhatsApp mentoring, lifetime digital access, and continued guidance ensure your success long after course completion.
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Career Focus
Every program includes business guidance, licensing support, and industry connections to accelerate your diamond career.
Choose Your Diamond Education Path
Whether you’re starting your diamond journey or advancing your career, we have the perfect program designed for your goals and learning style.
Rough Diamond Evaluation
Online Course + Lifetime Access / R5,500
Master rough diamond evaluation with our comprehensive 14-lesson online program. Perfect for flexible learning with expert WhatsApp support.
- 14 comprehensive online lessons
- Lifetime digital campus access
- International certification
- WhatsApp expert mentoring
- Self-paced learning
- Diamond dealer license assistance
Rough Diamond Evaluation
2-Day Hands-On + Equipment Kit / R13,800
Intensive hands-on training with real rough diamonds. Includes professional equipment kit and flexible scheduling to suit your availability.
- 2-day intensive hands-on training
- Professional equipment kit included
- Real rough diamond practice
- Flexible scheduling
- International certification
- Lifetime online access included
Comprehensive Training Outline
Our curriculum covers every aspect of the diamond industry, from geological formation to market trading, ensuring you graduate with complete professional competency.
We offer courses that cover all aspects of grading, evaluating, sorting, pricing, buying, selling, trading, and investing in both rough and polished diamonds. So you can rest assured that you will learn the secrets of trading diamonds in an ever-evolving industry. One of our aims is to elevate the skills of diamond graders, rough diamond sorters, gemologists, jewelry designers, and retailers in the diamond and jewelry industry.
📚Foundation Knowledge
- Diamond formation and geology
- Crystal structure and morphology
- Physical and optical properties
- Diamond industry history
- Global value chain understanding
🔍 Evaluation Skills
- GIA 4Cs grading system
- Rough diamond assessment
- Inclusion identification
- Professional tool usage
- Cut potential evaluation
💼 Business Applications
- Market valuation techniques
- Trading and negotiation
- Import/export procedures
- Dealer licensing process
- Business establishment guidance
Learn how to correctly use a loupe to identify inclusions and flaws and how they affect the value. In addition, you will study the different qualities resulting from diamond crystal growth such as Sawables, Makables and Industrial. This course also covers the diamond origin, mining, ore recovery, extraction, kimberlite surveying and diamond deposits. The student will be able on completion for example; read and compare lab reports of reputable internationally recognized diamond grading reports and certificates of the EGL, DIA, HRD and GIA. The most valuable skill obtained from this course is the ability to appraise both unpolished and polished diamonds. For this purpose of appraisal we will analyze the Rapaport Diamond Price List to calculate value.
We have launched a series of online courses, including live one-on-one online training via zoom. All of our online Diamond Cut, Identifying Lab-Grown Diamonds, Debeers Lightbox articles are now available as pdf, printable files.
Diamond Dealer License Support
Transform your diamond expertise into a legitimate business with our comprehensive dealer license assistance program, included in all our major courses.
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Application Guidance
Complete step-by-step assistance with your diamond dealer license application, including all required documentation and procedures.
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Business Setup
Comprehensive guidance on establishing your diamond business, from registration to operational procedures and best practices.
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Legal Compliance
Understand all legal requirements, regulatory obligations, and compliance procedures for operating as a licensed diamond dealer.
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Ongoing Support
Continued assistance and consultation as you navigate the early stages of your diamond dealing business journey.
Included in Most Courses
Diamond dealer license assistance (valued at R3,000) is included in our online courses, in-person packages, and corporate training programs.
Understanding the Global Diamond Industry
Gain comprehensive insight into the diamond industry’s complex ecosystem, from mining operations to retail markets, and position yourself for success in this prestigious sector.
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Mining & Extraction
From kimberlite pipes to alluvial deposits, understand how diamonds are discovered, extracted, and processed in major mining operations worldwide.
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Global Trading
Navigate international diamond bourses, understand market dynamics, and master the complexities of global diamond trading networks.
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Market Trends
Stay current with industry developments, emerging technologies, sustainability initiatives, and evolving consumer preferences shaping the future.
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Regulatory Framework
Master the Kimberley Process, understand legal requirements, and navigate the regulatory landscape governing international diamond trade.
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Retail Markets
Understand consumer behavior, retail strategies, and the final link in the diamond value chain from wholesale to end customer.
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Processing & Manufacturing
Learn the journey from rough stone to polished gem, including cutting, polishing, and the technologies that shape modern diamond manufacturing.
The diamond industry plays a significant role in the global economy and has cultural and historical significance in various societies. The world diamond market is represented by diamond mining, trade in rough diamonds, diamond manufacturing, synthetic diamonds and Jewellery sales. The bulk of the world diamond mining is concentrated in nine countries, with their share in the global production in physical terms as high as 99%. Some of the world’s largest producers of natural diamonds are South Africa, the Democratic Republic of Congo (DRC) and Botswana.
The diamond trade involves a complex network of manufacturers, wholesalers, and retailers. Major trading centers include Antwerp, Tel Aviv, Mumbai, and Dubai. Lab-Grown Diamonds: In recent years, there has been an increasing demand for lab-grown diamonds. These diamonds are created in controlled environments and have the same physical and chemical properties as natural diamonds but are generally more affordable. Where to purchase rough diamonds from. Research articles.
Why Choose Corlia Roberts Diamond Education?
Experience the difference of learning from internationally recognized experts who have trained major mining companies and government agencies worldwide.
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International Recognition
Trusted by Rio Tinto, Catoca Diamond Mine, MIBA, and government agencies across diamond-producing countries worldwide.
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Personalized Approach
No cookie-cutter courses! Every program is tailored to your goals with flexible scheduling and one-on-one attention.
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Real Diamond Practice
Learn with actual rough and polished diamonds, using professional equipment in real-world scenarios.
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Ongoing Support
WhatsApp mentoring, lifetime digital access, and continued guidance long after your course completion.
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Complete Business Support
Diamond dealer license assistance, business setup guidance, and industry connections included.
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Proven Results
31+ years of success stories with graduates working throughout the global diamond industry.
Prestigious Training Partnerships
We’re proud to provide specialized training to some of South Africa’s most respected jewelry retailers, enhancing their staff expertise and customer service excellence.
Jack Friedman Jewellers
V&A Waterfront, Cape Town
We’ve had the privilege of providing specialized diamond and jewelry training to the prestigious Jack Friedman Jewellers team at Cape Town’s iconic V&A Waterfront location. This partnership demonstrates our expertise in translating technical knowledge into practical retail excellence.
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Diamond Knowledge
Advanced diamond grading and evaluation training for retail staff
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Sales Excellence
Professional techniques for educating customers and closing sales
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Customer Service
Enhanced product knowledge for superior customer experiences
Why Jewelry Stores Choose Our Training
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Increased Sales
Knowledgeable staff convert more browsers into buyers
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Customer Confidence
Professional expertise builds trust and credibility
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Store Reputation
Enhanced reputation for quality and expertise
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Staff Value
Certified staff are more valuable and confident
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Official Partnership with DiamGold Academy
We’re proud to partner with industry-leading institutions to deliver world-class jewelry manufacturing education that meets international standards. Our courses are delivered in official association with DiamGold Academy, ensuring you receive internationally recognized training that meets the highest industry standards.
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Industry Standards
International jewelry manufacturing standards and best practices
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Professional Training
Gold and silver working techniques from industry experts
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Recognized Certification
Certificates recognized throughout the jewelry industry
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Global Network
Access to international jewelry manufacturing network
Partnership Courses Available:
🥇 Goldsmith Jewelry Manufacturing | 🥈 Silversmith Jewelry Manufacturing
Both courses include precious metals permit assistance and DiamGold Academy certification
Trusted by Industry Leaders Worldwide
Our graduates work successfully across the global diamond industry, trained with the same expertise trusted by Rio Tinto, government agencies, and major mining companies.
100%
Flexible Learning
31+
Years Experience
10+
Countries Served
1000+
Students Trained
Diamond Graduates
Our Training Locations
Experience world-class diamond and jewelry education in beautiful, professional settings designed to enhance your learning experience.
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Diamond Session Studios
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Flexible On-Site Training
We bring our expertise directly to you! Our mobile training solutions can be delivered at your preferred location across South Africa.
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Global Digital Campus
Access our comprehensive online learning platform from anywhere in the world with lifetime access to all course materials and updates.
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Jewelry Manufacturing Workshop
Professional jewelry manufacturing facilities equipped with industry-standard tools and equipment for gold and silver working.
Our Legacy: Company Update
We’re excited to announce that we are now operating as CXD International t/a Corlia Roberts Diamond Education – previously known as Corlia Roberts Institute of Diamonds. Same world-class expertise, same trusted team, enhanced international presence!
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Previously
Corlia Roberts Institute of Diamonds
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Now
CXD International t/a Corlia Roberts Diamond Education
🌍 Same Trusted Excellence • Now with Greater International Impact
This evolution reflects our commitment to expanding our international presence while honoring our rich heritage. All existing students, certificates, and partnerships remain fully valid and supported.
Ready to Start Your Diamond Journey?
Join thousands of successful graduates who have transformed their careers with our world-class diamond education. Your journey begins with a simple conversation.
“Your diamond education journey is just one conversation away!”
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