Polished Diamond Courses

POLISH YOUR KNOWLEDGE, BUILD YOUR SKILLS

Learn how to grade diamonds in one of the diamond capitals of the world. Our highly experienced lecturers will guide you through the fascinating world of diamonds. You will study the 4C’s: Carat, Colour, Clarity and Cut.

Certified Diamond Grader

2-4 weeks, depending on date and location.
Depends on date and location.
English , French , Italian , Arabic , Spanish , Polish , Greek
Global

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 VVS1, F or LC actually mean? Why is there such a price difference possible between two diamonds of the same size?


Our highly skilled and experienced lecturers will guide you through the fascinating world of diamonds. You will study the 4C’s: Carat, Colour, Clarity and Cut, determining the quality of a stone and as such the price. You will learn how to detect the most common simulants, and you will be able to work with the best microscope in the world and other gemmological equipment. At the same time, you will develop impeccable grading skills.


Our courses are a perfect balance between theoretical knowledge and practical skills.

Certified Diamond Grader

Duration

2-4 weeks, depending on date and location.

Requirements

Min. age: 18 years.
No previous diamond experience is required.

Number of attendants

Depends on date and location.

Target Group

This course is meant for:

Diamond traders, diamond experts, appraisers and graders, jewellers and designers, diamond and jewellery lovers, sales managers, buyers and job seekers.

Course Content

  • Introduction to the properties of diamonds.
  • Explanation of the 4C’s: Carat, Colour, Clarity and Cut.
  • Correct cleaning of diamonds.
  • Diamond optics. Use of HRD Antwerp stereozoom microscope (D- Scope).
  • Systematic examination of a diamond. Favourable and unfavourable angles of observation.
  • Principles of weighing, calculation of the carat weight.
  • Identification of external and internal characteristics. Plotting and exercises.
  • Colour determination of diamonds by comparison with master stones.
  • Grading of colour and fluorescence.
  • Clarity grading using the HRD Antwerp D-scope and loupe 10x with master stones for reference. 
  • Cut grading. Determination of proportions, symmetry and polish. Measuring dimensions using a caliper (micrometer).
  • Use of tables for proportions and symmetry.
  • Examination and grading of fancy cuts.
  • Characteristics and properties of diamonds versus imitations (simulants). Including simple tests to distinguish natural diamonds from imitations.
  • Identification of clarity treatments like crack filling.
  • Introduction to lab. grown diamonds and colour treatments.
  • Final examinations.

Examination

Practical examination CDG: Students have to examine and grade 8 diamonds correctly and identify a 9th stone as an imitation.
Theoretical examination CDG: Multiple choice exam with 40 questions.

Diploma

Diploma: HRD Antwerp Certified Diamond Grader
Date(s) Location Language Price Excl. Price Incl. Course Code
09/01/2023 - 27/01/2023 Antwerp English € 2.950,00 € 3.569,50 CDGE112301 More Info Register
14/01/2023 - 26/12/2022 Doha English € 2.950,00 € 3.569,50 CDGE5542301 More Info Register
27/02/2023 - 17/03/2023 Cairo English € 2.950,00 € 3.569,50 CDGE6552301 More Info Register
13/03/2023 - 31/03/2023 Antwerp English € 2.950,00 € 3.569,50 CDGE112302 More Info Register
13/05/2023 - 25/05/2023 Doha English € 2.950,00 € 3.569,50 CDGE5542302 More Info Register
26/06/2023 - 14/07/2023 Antwerp English € 2.950,00 € 3.569,50 CDGE112303 More Info Register
15/07/2023 - 27/07/2023 Cairo English € 2.950,00 € 3.569,50 CDGE6552302 More Info Register
04/09/2023 - 22/09/2023 Antwerp English € 2.950,00 € 3.569,50 CDGE112304 More Info Register
11/09/2023 - 29/09/2023 Dubai English € 2.950,00 € 3.569,50 CDGE2412301 More Info Register
07/10/2023 - 19/10/2023 Cairo English € 2.950,00 € 3.569,50 CDGE6552303 More Info Register
06/11/2023 - 24/11/2023 Antwerp English € 2.950,00 € 3.569,50 CDGE112305 More Info Register
27/02/2023 - 17/03/2023 Antwerp French € 2.950,00 € 3.569,50 CDGF112301 More Info Register
05/06/2023 - 23/06/2023 Antwerp French € 2.950,00 € 3.569,50 CDGF112302 More Info Register
09/10/2023 - 27/10/2023 Antwerp French € 2.950,00 € 3.569,50 CDGF112303 More Info Register
17/04/2023 - 29/04/2023 Thessaloniki Greek € 2.950,00 € 3.569,50 CDGG1522301 More Info Register
23/01/2023 - 04/02/2023 Rome Italian € 2.950,00 € 3.599,00 CDGI1162301 More Info Register
17/04/2023 - 29/04/2023 Napoli / Marcianise Italian € 2.950,00 € 3.599,00 CDGI1402301 More Info Register
02/10/2023 - 14/10/2023 Milano Italian € 2.950,00 € 3.599,00 CDGS1182302 More Info Register
22/05/2023 - 03/06/2023 Poznań Polish € 2.950,00 € 3.569,50 CDGP1532301 More Info Register
04/09/2023 - 16/09/2023 Barcelona Spanish € 2.950,00 € 3.569,50 CDGS1172301 More Info Register
25/09/2023 - 07/10/2023 Madrid Spanish € 2.950,00 € 3.569,50 CDGS1182301 More Info Register

Diamond Grading Practice Week

5 days
Depends on date and location.
English , Dutch , French
Global

During this 5-day course, you can refresh your knowledge and skills you've acquired during the Certified Diamond Grader course.


With a large number of polished diamonds (brilliant as well as fancy shapes) to grade, you can update your diamond knowledge and skills. Personal feedback from our expert staff will help you to become a much more experienced diamond professional.

Diamond Grading Practice Week

Duration

5 days

Requirements

Min. age: 18 years.
Diploma:  HRD Antwerp Certified Diamond Grader.


Number of attendants

Depends on date and location.

Target Group

This course is meant for:

Diamond traders, diamond experts, appraisers and graders, jewellers and designers, diamond and jewellery lovers, sales managers, buyers and job seekers.

Course Content

  • Grading of a large number of polished diamonds (round brilliant and fancy shapes) according to the 4C’s (Carat, Colour, Clarity and Cut) using an HRD Antwerp D-scope, a loupe 10x and all relevant instruments.
  • Identification of imitations and treated diamonds.
  • Personal coaching and continuous feedback on your results will help to improve your grading and upgrade your knowledge.

Diploma

Participation letter: Diamond Grading Practice Week
Date(s) Location Language Price Excl. Price Incl. Course Code
17/07/2023 - 20/07/2023 Antwerp English € 1.100,00 € 1.331,00 PDGE112301 More Info Register

Sorting of Polished Diamonds | Small Goods

5 days
Depends on date and location.
English
Global

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 parcels. This very intensive practical training meets the needs of the market.

Studying in Antwerp, the diamond capital of the world, offers you this unique opportunity of working with diamond parcels provided by the most important and largest diamond companies in the industry.

Several practical tests will evaluate your diamond knowledge.

Sorting of Polished Diamonds | Small Goods

Duration

5 days

Requirements

Min. age: 18 years.

Diploma: HRD Antwerp Certified Diamond Grader (or equal).

Proven and sufficient professional experience can be accepted too. In this case, a brief test with a loupe 10x will apply at the beginning of the course, testing knowledge of the properties of a diamond and its 4C’s, manipulation technique of loupe and tweezers (correct use), colour determination in theory and practice and evaluation of clarity and cut.

Number of attendants

Depends on date and location.

Target Group

This course is meant for:

Diamond sorters and buyers and diamond traders, experts, appraisers and graders.

Course Content

Sorting parcels of round brilliants and fancy cut diamonds according to the 4C’s using loupe 10x, table loupe and sortoscope.

Examination

Practical test: Practical test at the end of the course.

Diploma

Certificate: HRD Antwerp Sorting of Polished Diamonds/Small Goods
This course will be available upon request. Please contact us at education@hrdantwerp.com to make a request. Thank you.

OTHER HRD ANTWERP COURSES

Digital Jewellery Design

The digital revolution begins now! Polish your inspirations into design with the HRD Antwerp - Digital Jewellery Design course. You will learn drawing, shading, design theory, how to illustrate shape and form using new technology technics. Imagine a multimedia world, where images and creativity follow immediate paths, where everyday technology devices become the best means for developing your creative ability.

Rough Diamond Courses

These courses learn you how to sort a pile of rough diamonds into different categories according to various criteria such as size, colour, clarity and morphology. These courses focus on practice with a sound theoretical background. The new and extra module about Rough Diamond Management is the practical extension of the Introduction course.

Gemmology Courses

During these courses you’ll investigate the properties of gemstones, using specialized tools and you'll learn how to distinguish synthetic from natural gemstones (ruby, sapphire, emerald and more).

Diamond Jewellery Design Courses

These courses will teach you how to translate creative ideas into contemporary jewellery designs using different illustration techniques. You’ll also learn about the use of diamonds in jewellery and the different methods of diamond setting.

Workshops

Would you like to know more about fancy coloured diamonds, diamond treatments or laboratory-grown diamonds and diamond spectroscopy? HRD Antwerp offers workshops designed to introduce you into the fascinating world of extraordinary diamonds and focus on ruby, sapphire and emerald.

HRD Antwerp Graduate Gemmologist

HRD Antwerp Certified Diamond Grader HRD Antwerp Gemstone Identification HRD Antwerp Gemmologist