Gemmology courses in Paris
Gemmology courses in Paris
Learn to see what others do not.
Choose the freedom of individual sessions or follow a complete 15-week programme. Two groups are available each week, with real gemstones, gemmological instruments and guided practice in every class.
A similar colour. Several clues. A conclusion to work towards.
Observe and compare selected gems.
Use the instruments with a step-by-step method.
Teaching connected to the realities of the market.
Support tailored to your level and project.
A different way of looking
You know how to admire them. What if you learned to understand them?
Two gemstones that look almost identical to the naked eye can have very different natures, treatments and values. Gemmology teaches you to look beyond appearances using a structured method.
Observe
Colour, transparency, lustre, cut and the first visible clues.
Measure
Gather useful data with the instruments appropriate to the session.
Explore
Discover inclusions, internal structures and microscopic characteristics.
Interpret
Compare the results and learn to reach a reasoned conclusion.
A practical, progressive session
90 minutes to understand, then practise
Each session consists of one hour of theory and thirty minutes of guided practice.
The day’s topic
The tutor presents the properties, family or question being studied.
Observation
Immediately apply the criteria covered in the theory to real gemstones.
The instruments
Choose the relevant tools and learn to interpret their results.
The conclusion
The clues are compared to build a reasoned conclusion and understand its limitations.
“Theory comes to life when you observe, measure and compare.”
A goal for everyone
Who are the courses for?
The same methodological foundation, with examples and support tailored to each person’s project.
Enthusiast or beginner
You love gemstones and want to understand what you see, with no prior scientific knowledge required.
Jewellery professional
You want to observe, describe and present the gemstones entrusted to you or offered to your clients more effectively.
Career change or specialisation
You are developing a project involving gems, jewellery or trading and are looking for solid foundations.
The complete programme
What you will be able to do after 15 weeks
The programme gives you a practical method, technical reference points and the habit of comparing several observations before reaching a conclusion.
01Build an identification method+
Follow a consistent sequence of observation and record the results.
02Identify 15 commonly traded gems+
Recognise their essential properties and main differences.
03Use practical gemmological instruments+
Choose the right tool and understand what its results genuinely establish.
04Distinguish natural, synthetic and imitation materials+
Compare clues without drawing conclusions from a single observation.
05Detect certain treatments+
Recognise useful signs and know when external analysis is needed.
06Assess quality and reason in practice+
Carefully relate colour, cut, transparency, condition and market context.
Practical information
Two groups, two sessions a week
Both groups follow the same schedule and programme. Choose the one that best suits your timetable.
Monday + Wednesday
7 pm to 8.30 pmRegistration requiredTuesday + Thursday
8 pm to 9.30 pmPriority groupChildren’s classes from age 8
Wednesday from 2.30 pm to 4 pmAn age-appropriate class centred on observation, curiosity and supervised hands-on work.
Before choosing your package
Start with the Mystery Gemstone
The introductory session is available Monday to Friday, by reservation. Discover our method, examine your first gemstone and see for yourself the difference between an individual session and the complete programme.
- A real gemstone to observe
- A first introduction to the instruments
- A discussion of your goals and the most suitable format
- No commitment at the end of the session
Two formats for adults
Choose flexibility or a complete learning journey
Both formats give access to the same classes. The difference is the freedom to attend, the continuity of the programme and the price per session.
Individual classes
- Attend only the topics that interest you
- Topics are announced in advance on Instagram and WhatsApp
- 1 hour of theory and 30 minutes of practice
- Gemstones, instruments and materials provided
- Booking subject to available places
15-week programme
- 30 sessions, with two classes a week
- 45 hours in total: 30 hours of theory and 15 hours of practice
- Structured programme covering gems, instruments, treatments and synthetics
- €25 incl. tax per session instead of €37 for individual classes
- Choice of the Monday–Wednesday or Tuesday–Thursday group
Take part from another city or country
Two distance-learning options, depending on whether you can come to Paris for practical work
Theory can be followed remotely. Your chosen package then determines whether practical work is grouped into in-person sessions or excluded from the programme.
Online theory + practical work in Paris
€750 incl. tax- Theory followed remotely
- Two full days of in-person practical work
- Days organised midway through or at the end of the course
- Handling gemstones and instruments included
Theory-only programme
€375 incl. tax- All theoretical content followed remotely
- No travel required
- The two practical days are not included
- Supervised use of the instruments is not included
The €375 theory programme does not provide the same practical experience as the in-person or hybrid formats. This difference is clearly stated so that everyone can make an informed choice.
Expertise to share
Learn from professionals who work with gemstones
CKYSTONES teaching connects gemmological methods, hands-on work with gemstones and the realities of the market. The aim is to develop sound observation skills, rather than simply recite definitions.
Google reviews
They share their experience
The testimonials shown come from CKYSTONES’ Google profile and link to their original posts.
Keep discovering
Learning also starts with curiosity
Explore our gemmological resources to deepen your understanding of gemstones even before your first session.
Frequently asked questions
Everything you need to know before starting
What is the difference between the two formats?
Individual classes let you freely choose the topics that interest you, at €37 incl. tax per session. The complete programme follows a 15-week progression and includes 30 sessions for €750 incl. tax.
Why does the complete programme cost €25 per session?
The €750 fee covers all 30 sessions in the programme, equivalent to €25 incl. tax per class. Individual classes remain €37 incl. tax because they offer complete flexibility without a long-term commitment.
How are the groups organised?
Two groups are available each week: Monday and Wednesday, or Tuesday and Thursday, always from 8 pm to 9.30 pm. Each group attends two sessions a week.
How can I find out the upcoming individual class topics?
Upcoming topics are announced in advance on Instagram and WhatsApp. You can ask to receive these announcements directly through the form.
What does each session include?
Each class lasts 1 hour 30 minutes: one hour of theory followed by thirty minutes of guided practice. The necessary gemstones, instruments and materials are provided.
Can I take the course remotely?
Yes. The hybrid format lets you follow the theory remotely, then complete the practical work over two full days in Paris, midway through or at the end of the course. The price is €750 incl. tax.
What does the €375 distance-learning package include?
It includes theory only. The two practical days and supervised use of the instruments are not included, as this package is intended for people who cannot travel.
Is the first session really free?
Yes. It lets you discover the method before choosing an individual class or the complete programme. It is available Monday to Friday, by reservation and subject to availability.
Can the classes be taken in English?
Yes. Dedicated sessions are taught entirely in English. Simply select English in the form to receive the corresponding time slots.
Are the classes open to children?
Yes. Adapted classes are available from age 8, on Wednesday afternoons from 2.30 pm to 4 pm.
Will I learn to certify a gemstone?
You will learn a method of practical observation and identification. The course does not replace advanced analyses or reports issued by an equipped laboratory.
Get started
Your first gemmological investigation starts here.
Book an introductory session or choose the package that suits your project.
