Start your journey at the source of gemmology: learn about gemstone origins, see how gems are mined and how these extraordinarily valuable minerals get to market. Learn about gemmology quality and value factors for all types of gems, from Diamonds to Coloured Stones, Phenomenal gems, Organics to Jade.
This comprehensive course gives you the knowledge and power to take control of your gem purchases (if you are a collector or enthusiast) or your sales process (if you are a designer or jewellery professional). Beyond the common trade practices, you will see and learn about imitations, synthetics and treatments sometimes used to enhance or even to deceive.
GT101 Coloured Gems - The Earth's Natural Wonders
GT102 Factors Affecting the Value of Coloured Gems
GT103 Diamonds, the 4 C's & Beyond
GT104 Natural Diamonds, Simulants & Synthetics
GT105 Pearls: Natural, Cultured & Imitation
GT106 Assessing Pearl Value
GT107 Phenomenal Gemstones
GT108 Jade and Jade Imitations
GT109 Organic Gems
GT110 Summary, Testing & Next Steps
Overall, the course was very well planned, course materials were excellent and the instructor was marvellous. I cannot think of a single complaint and I would highly recommend this course to friends who would be interested to know more about the Jewellery and Gem trade. Keep up the good work!
- Raymond K.
I am surprised by the extend of sample gemstones available for use in class. Enough details. Fantastic.
- Gerard L.
Tanja is exceptional in her lectures. She is very well equipped in both industry experience and theoretical applications which help in further understanding the course material. Tanja's strong passion is evident in her delivery of the course materials to the students, and has made the course extremely enjoyable.
- Shaun F. (Singapore)
Everything the trainer has done for the course is superb. Miss Tanja is a very knowledgeable trainer. Learned so much from her in this course. Thank you.
- Anthony A. (Singapore)
( I would say ) That the practical lessons in Gemology would be more useful than studying a GIA course even though its cheaper
- Jane C. (Singapore)
In a short but intense period of 34 hours, I felt that I learnt a lot of tips that would help me with sourcing for gems, especially tell tale signs of imitations.
- Geraldine H. (Singapore)
- Tanja is an award winning jewellery designer & gemmologist with more than 4 decades of experience educating the jewellery industry across 4 continents. Dean and founder of JDMIS, Tanja works with aspiring artisans as well as top jewellery brand team members to help them achieve brilliance in their careers. Read More
Like all JDMIS courses, students receive everything they need to complete all their coursework. This course includes all the tool and reference material needed in order to fully appreciate the gem exhibits and the jewellery samples.
This popular course takes place in our Gem Vault where participants are able to see, examine, scope and understand Tanja's collection of over 1,800 gems, jewellery pieces and examples, including rare and valuable specimens as well as common imitations found in jewellery markets in the region.
This course is a Core Component of all learning paths. We refer to these modules as CC.
Next Step (Complementary Jeweller's Knowledge):
FT100 - Jewellery Fashion Trends 1: Epic and Contemporary Trends.
Participants attending and completing this programme as a stand-alone certification can choose to enroll for any full diploma.
1 week (Full-time), or
5 weeks (Part-time)
JDMIS runs week-day, weekend and weeknight courses for this popular course. JDMIS also has flexible make-up schedules and graduates can return without cost for refresher courses (subject to availability).
Course fee is inclusive of GST as well as all tools and materials provided during the course.