Level Two: Basic Gemmology or Equivalent
In this course you will learn about imitation gemstones, the different methods used to manufacture lab-created gemstones, how to distinguish them from their natural counterparts, and how to detect the various treatments used to improve the appearance and/or value of gemstones.
Imitation and composite gemstones, methods used to manufacture lab-created gemstones including Verneuil, Czochralski, Flux Melt, Hydrothermal, Skull Crucible, Zone Melt, Horizontally Oriented Crystallization, HPHT, CVD, Detonation, Ultrasonic Cavitation, Sublimation Method, and Modified Stober Method, their unique identifying features, treatments and enhancements including heat treatment, surface and sub-surface diffusion, lead glass fracture filling, flux assisted partial fissure healing, glass fracture filling, cobalt doped glass filled sapphires, clarity enhanced diamonds, HPHT, quench-crackling, surface modifications, coatings and foil backs, laser drilling, irradiation, and advanced gem testing techniques.
This course includes two online tests, one after lesson eleven and the other after lesson twenty-two.
Upon the successful completion of this course you will receive course credits towards both the Career Gemmologist Diploma and Coloured Gemstone Professional Diploma Programs.
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 four (4) 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.
If you reside outside of Holland, please contact DGA at firstname.lastname@example.org for more information.