- Please refrain from booking the same lecture more than once or booking multiple lectures that are held during the same time slot.
- Applying by a person, who is not the attendee, is possible, but we ask that the attendee's e-mail address should be registered at the time of application.
- For each lecture that has reached its maximum capacity, we offer an availability inquiry service (in case of cancellation). This service is available on the details page of the lecture.
- Cancellations received at least 7 days prior to the lecture will be fully refunded. Please contact us via email contact form in the L'ECOLE website.
The World of gemstones
The Ruby, a fiery and bewitching Stone

Discover the Ruby
What is red? How do we perceive it? What is its special symbolism?
You'll set out to discover this mythical gem through the places it's extracted around the world. You'll understand its fascinating and special properties, which have made it the "king of precious stones".
About the Course
What is red? How do we perceive it? What is its special symbolism?
You'll set out to discover this mythical gem through the places it's extracted around the world. You'll understand its fascinating and special properties, which have made it the "king of precious stones".
Sit back and relax
- This course is given by two gemology experts.
- This course is given in English with Japanese simultaneous interpretations for all sessions.
- You are welcomed by your teachers before the class starts: a chance to meet each other and share experiences.
- Coffee, tea, and pastries are offered upon your arrival.
- You don’t need to bring any specific material.
- A certificate is given at the end of the class.
- Take part in the course "Recognize the gemstones" to broaden your exploration of gemology and to identify precious stones.