Colored Stones Identification and Evaluation
Advanced
6 Days
COURSE OVERVIEW
What You'll Experience
A comprehensive colored gemstone identification program covering rubies, sapphires, emeralds, tourmalines, spinels and other major colored gemstones. Learn gemological fundamentals, identification techniques, treatment detection, quality assessment and market analysis to become an all-around expert in colored gemstones.
6
Training Days
8
Modules
800+
Gemstone Samples
Expert
Expert Instructors
CURRICULUM
What You'll Learn
01
Gemological Fundamentals
Learn crystal structures, physical properties, optical characteristics and chemical compositions of gemstones to build a solid gemological foundation.
02
Gemological Instruments and Techniques
Master the use of professional instruments including refractometers, spectroscopes, microscopes and dichroscopes for gem identification.
03
Beryl Family Studies
Systematic learning of aquamarines, morganites and other beryl family gemstones' characteristics and quality assessment.
04
Tourmaline and Spinel Identification
Master the color origins, variety classification, identification features and market value assessment of tourmalines and spinels.
05
Other Important Colored Gemstones
Learn identification and evaluation of garnets, tanzanites, topazes and other important colored gemstones.
06
Treatment and Synthesis Detection
Master detection techniques for common treatments including heat treatment, filling, dyeing and irradiation, and identify synthetic and imitation gemstones.
07
Gemstone Inclusion Studies
Systematically study the identification and analysis of various gemstone inclusions and understand their significance for origin determination and quality assessment.
08
Colored Gemstone Grading
Learn international colored gemstone grading standards and master professional evaluation methods for color, clarity, cut and carat weight.
CERTIFICATE
Your Professional Credential
Upon successful completion of this course, you will receive a GUILD certificate recognized by leading gemological institutions, laboratories, and jewelry houses worldwide.
Student Voices
What Our Alumni Say
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.
Prerequisites
- Basic understanding of mineralogy or geology (recommended)
- Strong interest in gemstones and jewelry
- No prior gemological experience required
What's Included
- All laboratory equipment and instruments
- Access to 700+ A-Type gemstone samples
- Comprehensive course materials and textbooks
- Professional gemological toolkit
- Certificate upon successful completion
- Lifetime access to alumni network
Questions
Frequently Asked
Can't find what you're looking for? Contact our admissions team for personalized assistance.
Contact UsWhat is the class size and student-to-instructor ratio?
We 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.
Do I need to purchase any equipment or materials?
No, all laboratory equipment, instruments, and gemstone samples are provided.
Is the diploma internationally recognized?
Yes, GUILD diplomas are recognized worldwide. Our graduates covers various fields.
Ready to Enroll?
Secure your spot in this exceptional gemology program and take the next step in your professional journey.