Our Gemmology Diploma is the most prestigious international gemmological qualification in the gem and jewellery trade. You will look at a wider range of gems, synthetics and treatments, and will build upon the practical and theoretical knowledge learnt during your Gemmology Foundation course, leading to a more in-depth understanding of gemmology and the principles of gem testing and enhanced gem identification skills. Upon completion of the Diploma course you will be confident at handling, testing and identifying a wide variety of gemstones.
Graduates of the Gemmology Diploma course can apply for Fellowship of Gem-A, allowing them to use the letters FGA after their name. FGA status conveys a student’s knowledge, integrity, membership of a professional body and commitment to professional development, and is highly recognized within the trade. Your name will appear on the FGA and DGA register, available to the public to view on our website, so anyone can see that you are qualified and a registered Member with us — ensuring their peace of mind whilst advertising your knowledge and integrity.
Building on your knowledge learnt during the Gemmology Foundation, you will:
Have a broader knowledge of treatments and synthetic materials, including their production, use, identification and the resulting implications for the gem trade
Consider the ethical, environmental and technological implications and applications of gemmology
Interpret results accurately from advanced gem testing equipment
Be confident in applying scientific principles and concepts in solving problems relating to gemmology, and to assess the validity, reliability and credibility of scientific information related to gemmology
Learn to demonstrate a logical approach to gem testing, as well as be able to acknowledge limitations and uses of certain tests.
The origin and formation of gemstones and the various stages of the gemstone pipeline
All ODL Gemmology Diploma students need to attend a Gemmology Diploma lab class and complete the Diploma Practical Certificate, to ensure that your practical skills develop to the same standard as those who attend on-site classes. The lab class will consist of practical tuition over several days, with a practical examination on the final day of the class. Students can attend a lab class as part of the course in the UK, USA or Japan (which will include exam), or may arrange practical sessions independently with a GAPP centre (these practical sessions will not include the exam; this will need to be arranged and sat separately during the January or June exam sessions).
The Diploma lab class gives ODL students the opportunity to familiarize themselves with a wide range of gem materials and gem testing techniques that will enable them to accurately test and identify gem materials.
Observation; the use of the 10× lens and the microscope
Effective and accurate use of the refractometer and how to interpret the results for a range of different materials
Use of specialist gemmological instruments including the spectroscope, polariscope, conoscope, dichroscope, colour filters and UV light to help determine the identity of gem materials as well as hydrostatic determination of specific gravity.
To handle and identify organic, non-organic, ornamental, rough, fashioned, mounted, natural, artificial and treated stones.
To demonstrate a logical approach to gem testing by selecting appropriate techniques for the material under test
To demonstrate safe and skillful practical techniques
To make, record and communicate reliable and valid observations and measurements with appropriate precision and accuracy
To interpret, explain and evaluate results clearly and logically using gemmological knowledge and understanding.
I studied the on-site evening course over one year, which I thoroughly enjoyed. I found learning with a small group of enthusiastic students and like-minded tutors enabled me to succeed. Studying the Diploma has helped me in my career, as having recently joined the gem trade I am now able to use my knowledge and skills with the confidence and assurance that I am making the right decisions.
BSc in Gemmology & Jewellery Studies (requires successful completion of Gemmology Foundation, Gemmology Diploma and Diamond Diploma)
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