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Courses
Whether you’re starting your career in the diamond industry or advancing your skills, our expert-led courses provide hands-on training with real diamonds and gemstones.Â
Explore Our Accredited
At the Harry Oppenheimer Diamond Training School, we offer a wide range of courses covering every stage of the diamond pipeline. This includes courses from rough diamond evaluation and grading to diamond polishing and coloured stones.
Each course is designed to combine theory with hands-on training, ensuring you gain both knowledge and practical skills. Whether you are entering the industry, expanding your expertise, or seeking short, specialised training, you’ll find a course tailored to your needs.
Browse the options below to learn more about what each course covers, the duration, and upcoming dates.
Rough Diamond Evaluation
This course provides a practical introduction to the diamond industry, from understanding rough diamond evaluation and planning to diamond polishing basics.Â
Diamond Polishing
Learners are provided with natural diamonds and the necessary tools and equipment to polish these diamonds to perfection in a factory environment.Â
Diamonds and Diamond Grading
This course has two components, where students are taught the background of Diamonds and Diamond grading from formation through to the pricing of a polished diamond.Â
Essentials for
Coloured Stones
To give the student background knowledge and understanding of the most popular 18 gemstones, their properties, common simulants and synthetics.
Essentials for Rough Diamond Evaluation
Students are taught to understand the characteristics and estimate the Clarity, Cut, Colour and Carat- Weight of a rough diamond.
Entrepreneurial Valuation & Polishing Course
This course is ideal for business professionals who want to quickly gain practical knowledge of rough diamond valuation and polishing, without committing to longer programmes.
Rough Diamond Evaluation
This course provides a practical introduction to the diamond industry, from understanding rough diamond evaluation and planning to diamond polishing basics.Â
Diamond Polishing
Learners are provided with natural diamonds and the necessary tools and equipment to polish these diamonds to perfection in a factory environment.Â
Diamonds and Diamond Grading
This course has two components, where students are taught the background of Diamonds and Diamond grading from formation through to the pricing of a polished diamond.Â
Essentials for
Coloured Stones
To give the student background knowledge and understanding of the most popular 18 gemstones, their properties, common simulants and synthetics.
Essentials for Rough Diamond Evaluation
Students are taught to understand the characteristics and estimate the Clarity, Cut, Colour and Carat- Weight of a rough diamond.
Entrepreneurial Valuation & Polishing Course
This course is ideal for business professionals who want to quickly gain practical knowledge of rough diamond valuation and polishing, without committing to longer programmes.
Accreditation and industry memberships
