OAT Admin
Certified Diamond Grader – CDG3I2601
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…
ADJEM2603 – Juweelgeschiedenis – Vijf eeuwen onder de loupe” (Jewellery History – Five centuries under the loupe)
The Jeweller’s Eye Masterclass: Reading and Dating Jewellery is an intensive, three day, object led training for jewellery professionals, students and committed collectors who want…
ADJEM2602 – Juwelen leren lezen – Wat zie je écht?” (Learning to read jewellery: What do you actually see?)
The Jeweller’s Eye Masterclass: Reading and Dating Jewellery is an intensive, three day, object led training for jewellery professionals, students and committed collectors who want…
GD8E2602 – GEMMOLOGY DIPLOMA
The study of gemmology investigates all the properties of precious stones. Students who delve into gemmology, find themselves in an exciting new world of observation…
IDC2E2602 – Introduction to Diamond & Coloured Stone Workshop
HRD Antwerp Date – 30th March,2026 Introduction to Diamond & Coloured Stone Workshop (2-Day Hands-On Workshop) Conducted by HRD Antwerp About the Workshop Step into…
IDC2E2601 – Introduction to Diamond & Coloured Stone Workshop
HRD Antwerp Date – 30th March,2026 Introduction to Diamond & Coloured Stone Workshop (2-Day Hands-On Workshop) Conducted by HRD Antwerp About the Workshop Step into…
GPI2602 – Gemmology Advanced Practice Week
You followed a gemmology course some time ago? Never heard about golden sheen sapphire or about the new generation of cobalt-treated sapphire? This practice week…
DGD8E2604 – Diamond Grading Diploma
Unlock the Business of Diamonds – From Mine to Market Step into the fascinating world of diamonds with a cutting-edge professional program designed to give…
Gemmology Basic Online Theory – GBOE2601
The study of gemmology investigates all the properties of precious stones. Students who delve into gemmology, find themselves in an exciting new world of observation…
DJDO2602 – 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…
PDG6E2602 – Practical Diamond Grading
Course Content – Day-Wise Structure Day 1 – Introduction to Diamonds & Carat Weight Theory • Definition and formation of diamonds • Physical and optical…
PDG6E2601 – Practical Diamond Grading
Course Content – Day-Wise Structure Day 1 – Introduction to Diamonds & Carat Weight Theory • Definition and formation of diamonds • Physical and optical…