Diamond Education College; Opening the doors to the diamond industry
Diamond Education College; A cut above the rest
Diamond Education College; Add a sparkle to your curriculum vitae

Rough Diamond Evaluation and Grading Course

  1. Duration of Rough Diamond Evaluation and Grading Course

    It is a 2 week course - full day from Monday to Friday, 08:00 to 14:00.

  2. Commencement

    The Rough Diamond Evaluation and Grading Courses will be run as follows:-

    Rough Diamond Evaluation and Grading Courses
    Start DateEnd DateStatus
    06 January 202506 Jan 202517 January 202517 Jan 2025Vacancies
    20 January 202520 Jan 202531 January 202531 Jan 2025Vacancies
    03 February 202503 Feb 202514 February 202514 Feb 2025Vacancies
    17 February 202517 Feb 202528 February 202528 Feb 2025Vacancies
    03 March 202503 Mar 202514 March 202514 Mar 2025Vacancies
    17 March 202517 Mar 202528 March 202528 Mar 2025Vacancies
    31 March 202531 Mar 202511 April 202511 Apr 2025Vacancies
    14 April 202514 Apr 202525 April 202525 Apr 2025Vacancies
    28 April 202528 Apr 202509 May 202509 May 2025Vacancies
    12 May 202512 May 202523 May 202523 May 2025Vacancies
    26 May 202526 May 202506 June 202506 Jun 2025Vacancies
    09 June 202509 Jun 202520 June 202520 Jun 2025Vacancies
    23 June 202523 Jun 202504 July 202504 Jul 2025Vacancies
    07 July 202507 Jul 202518 July 202518 Jul 2025Vacancies
    21 July 202521 Jul 202501 August 202501 Aug 2025Vacancies
    04 August 202504 Aug 202515 August 202515 Aug 2025Vacancies
    18 August 202518 Aug 202529 August 202529 Aug 2025Vacancies
    01 September 202501 Sep 202512 September 202512 Sep 2025Vacancies
    15 September 202515 Sep 202526 September 202526 Sep 2025Vacancies
    29 September 202529 Sep 202510 October 202510 Oct 2025Vacancies
    13 October 202513 Oct 202524 October 202524 Oct 2025Vacancies
    27 October 202527 Oct 202507 November 202507 Nov 2025Vacancies
    10 November 202510 Nov 202521 November 202521 Nov 2025Vacancies
    24 November 202524 Nov 202505 December 202505 Dec 2025Vacancies
    08 December 202508 Dec 202519 December 202519 Dec 2025Vacancies
  3. Course Fee

    The course fee is R14,000.00 inclusive of VAT.
    Off-site training sessions can be arranged provided there are a minimum of 10 students per course. Please contact our offices for more information.

    To ensure personal attention, each course is limited to a maximum of ten students.

    A registration deposit of 50% is payable to secure the student's place. Check availability of course date before paying a deposit. Acceptance will only be confirmed upon receipt of the required deposit paid into our bank account and proof provided.

  4. General Course Objectives
    1. To prepare the student to become proficient in every technique involved in the evaluation and grading of diamonds.
    2. To teach the student how to sort and buy diamonds both in the rough and cut state and how colour, imperfection and shape affect prices.

  5. Course Outline
    Students will learn:
    1. the correct use of a loupe.
    2. the different varieties of diamond crystals and polycrystalline aggregates in diamonds using real diamonds as well as wooden and plastic models.
    3. the identification of imitation (fake) diamonds.
    4. structural defects and the internal structure of diamond crystals including marks, inclusions, naart, maccles and stress.
    5. optical, mechanical, electrical, thermal and chemical properties of diamond crystals.
    6. the study of impurity centres in rough diamond crystals, their cause and effect.
    7. how to select diamonds for fancy shapes, determining their ultimate form whilst in the rough stage.
    8. how to determine colour in diamonds, both natural and artificial, and its effect on buying and selling.
    9. how to select and sort rough diamonds for purity, colour, size, shape and any unusual qualities.
    10. how to determine whether a whole rough diamond is to be cleaved, sawed or retained as is.
    11. classification of rough gems and industrial diamonds.
    12. use of a polariscope when analyzing stress and strain within the internal molecular structure of rough diamonds.
    13. sketching of rough diamonds pinpointing impurities within the diamond.
    14. use of a Moe gauge to estimate weight recovery as well as estimating weight recovery percentages.
    15. pricing of rough diamonds using the Rapaport Polished Diamond Price List and the ADTEC Rough Diamond Guideline Price List.
    16. use of OGI planning scanner & computer.

  6. Certificate

    There will be a practical exam on completion of this course, and the student will receive a certificate stating that they have successfully completed the Rough Diamond Evaluation and Grading Course at the Diamond Education College.

  7. Applications
    1. Applications must be made well in advance because of the limited number of students that can be accommodated at any specific intake.
    2. Admission is solely at the schools discretion.
    3. Full fee must be paid before commencement of the course.
    4. Fees are not refundable. Postponing of the course is possible only with two weeks advance notice.

  8. Equipment

    All equipment for use during the course will be provided and remain the property of the Diamond Education College.

  9. Accommodation and Transportation

    Students must arrange their own transport and accommodation.

  10. Discipline

    Students will be subject to the disciplinary code of the Diamond Education College. Any student who is in breach of its code will be liable to suspension or expulsion without refund of fees paid.

  11. Language

    The course is presented in English.