Dutch Gem Academy

Basic Gemmology Course


Level One - None



Course Objective

You will learn about the various instruments used to identify gemstones, and the scientific principles they are based upon.

Topics Covered Include

The chemical nature of gemstones, physical and optical properties, basic crystallography, the absorption of light, the spectroscope, refraction and reflection, the refractometer, optical character and sign, dispersion, reflectivity meters, polarized light, the polariscope, pleochroism, the dichroscope, colour filters, specific gravity, luminescence, magnification and thermal conductivity.

Tests and Examinations

This course includes two online tests, one after lesson five and the other after lesson ten.

Course Credits

Program and
							Course Flow Chart

Upon the successful completion of this course you will receive course credits towards both the Career Gemmologist Diploma and Coloured Gemstone Professional Diploma Programs.

Long Distance Learning

This course is available for long distance learning. You can register at any time and study at your own pace. There are no time restrictions.

This course includes two (2) hours of online tutoring from our Dutch Gem Academy instructors. Once you have registered, you will receive an email detailing how you can choose your tutoring hours. You can also request additional tutoring hours through your DGA tutor if necessary.

Cost (Digital): € 200 (Euros)

Cost (Printed): € 255 (Euros) including shipping


If you reside outside of Holland, please contact DGA at information@dutchgemacademy.com for more information.