

A comprehensive crystal identification course systematically covering the distinction between natural and synthetic crystals, identification and evaluation of various crystal types. Includes clear quartz, amethyst, citrine, rutilated quartz, phantom quartz and other major varieties, mastering crystal physical properties, optical characteristics, inclusion features and market value assessment methods.

Learn crystal chemical composition, crystal structure, physical properties and optical characteristics, understand crystal formation conditions and geological environments.
Master distinguishing features between natural and synthetic crystals, understand how to use microscopes and spectrometers for accurate identification.
Systematically learn characteristic identification and quality assessment of clear quartz, amethyst, citrine, smoky quartz, rose quartz and other major crystal varieties.
In-depth study of inclusion characteristics and market value of special crystal varieties including rutilated quartz, phantom quartz, titanium quartz and rabbit hair crystal.
Learn to identify and analyze various inclusions in crystals, including identification of mineral inclusions such as rutile, tourmaline and mica.
Learn crystal quality grading standards, understand the impact of color, clarity, transparency and inclusions on value and market pricing strategies.
Upon successful completion of this course, you will receive a GUILD certificate recognized by leading gemological institutions, laboratories, and jewelry houses worldwide.

At GUILD, I discovered that pearls are more than jewelry—they’re a cross-cultural art form. The program made me more confident and professional in sharing their beauty.
GUILD has a strong team of instructors who are very patient, and the quality of the classes is guaranteed. In addition to theoretical learning, a lot of time is devoted to hands-on practice, which I really enjoy.
The immersive experience of on-site learning is very strong. I really enjoy the “learn-and-practice” approach, which allows me to turn what I’ve learned into practical experience. This opportunity to study at gemstone mining sites has given me a deeper understanding of the gem industry.
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Contact UsWe maintain small class sizes of maximum 20 students to ensure personalized attention. The student-to-instructor ratio is approximately 8:1, allowing for hands-on guidance and individualized feedback.
No, all laboratory equipment, instruments, and gemstone samples are provided.
Yes, GUILD diplomas are recognized worldwide. Our graduates covers various fields.

Secure your spot in this exceptional gemology program and take the next step in your professional journey.