OAT Admin
SGE2602 – Sorting of Polished Diamonds – Small Goods
This course will give you the grading/sorting skills you need to become a diamond sorter or buyer. In this course you will deal with diamond…
GA3E2603 – Gemmology Advanced
GEMMOLOGY ADVANCED This course enables you to obtain in-depth knowledge on the classification of all the different varieties of gemstones. You will learn to identify…
CDG2IN2602 – Certified Diamond Grader
What is a diamond? How does it form? Why are diamonds considered so special and precious? How can you know if a ‘diamond’ is natural…
DJDO2604 – Digital Jewellery Design
Learn how to translate your ideas into digital drawings from the comfort of your home using Procreate design program. During this course you will learn…
PDG8I2601 – Practical Diamond Grading
The Diamond Grading Practical Course introduces students to the procedures used to grade diamonds according to HRD Antwerp standards. Using the 4Cs, students apply their…
CDG4E2602 – Certified Diamond Grader
What is a diamond? How does it form? Why are diamonds considered so special and precious? How can you know if a ‘diamond’ is natural…
RSE1E2602 – Ruby, Sapphire and Emerald Workshop
A workshop designed to introduce you to the fascinating world of gems. How to identify them and how to detect natural ones from imitations and…
RSERE15025 – Ruby, Sapphire & Emerald Theory (Recorded)
This pre-recorded course is designed to introduce you to the fascinating world of gems. Learn more about rubies, sapphires and emeralds.
Appraisal of Rough Diamonds – ARDE2412502
Learn to identify the characteristics of rough diamonds and learn how to sort a pile of rough diamonds into different categories, according to various criteria…
LDGRE15025 – Lab Grown Diamond Seminar – Recorded
Flexible Learning: Pre-recorded Video Lessons: Access high-quality video lectures led by industry experts, available 24/7. Receive support from our instructors throughout the course Duration &…
RDJDA1502501 – Recorded Digital Jewellery Design Advanced
Recorded Digital Jewellery Design – Advanced Are you enthusiastic about jewellery design? Whether you are a beginner or an experienced designer, our comprehensive jewellery design…












