OAT Admin
Fancy Colour Diamonds – FC
Why are natural pink diamonds so expensive? What is a Fancy Colour? Why such diamonds have a different Diamond Grading Report? Is an irradiated diamond…
Certified Diamond Grader – CDG3E2603
How do I know that a “stone” is a real diamond and not a fake? Why are diamonds considered so special and precious? What does…
Gemmology Basic Advanced – GBA5E
What is gemmology? How are gemstones or coloured stones different from diamonds? What are precious and semi-precious gemstones? What makes some rubies, sapphires and emeralds…
Certified Diamond Grader – CDG3D
How do I know that a “stone” is a real diamond and not a fake? Why are diamonds considered so special and precious? What does…
Diamond Jewellery Design – DJD Online
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…
Certified Diamond Grader – CDG2S
How do I know that a “stone” is a real diamond and not a fake? Why are diamonds considered so special and precious? What does…
Certified Diamond Grader – CDG2I
How do I know that a “stone” is a real diamond and not a fake? Why are diamonds considered so special and precious? What does…
Certified Diamond Grader – CDG2E
How do I know that a “stone” is a real diamond and not a fake? Why are diamonds considered so special and precious? What does…
Certified Diamond Grader Online Live – CDGOE
The HRD Antwerp ‘Certified Diamond Grader Online Live’ is a combination of two modules: online theory and on campus Diamond Grading Practical Course (10 days)….
Gemmology Basic – GB3E2602
What is gemmology? How are gemstones or coloured stones different from diamonds? What are precious and semi-precious gemstones? What makes some rubies, sapphires and emeralds…
Certified Diamond Grader – CDG2S2601
How do I know that a “stone” is a real diamond and not a fake? Why are diamonds considered so special and precious? What does…
Diamond Grading Practical – PDG8ED2601
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…