Colored Stone Professional program

GSI Diamond Certification-usa

Welcome to GSI’s Colored Stone Professional Program

We are excited to have you join us on this journey of discovery, where you will gain  comprehensive learning about the fascinating world of gemstones, from the mine to market. You will learn about the geographic origins of gemstones, how to identify and evaluate gemstones, and learn about treatments and enhancements. The course is a perfect blend of in-depth knowledge and hands-on experience and is designed and delivered by experienced gemologists who have decades of experience in the industry. We are confident that by the end of this course, you will have developed a deep appreciation and understanding of gemstones and be well-equipped to become experts in the industry.

Master the World of Gemology

Be the industry’s best and build a successful career in the world of gems. Earn GSI’s Colored Stone Professional to elevate your professionalism.

In an industry that is constantly changing, we aim to keep our students updated with the latest market developments. The GSI Colored Stone Professional is a comprehensive industry-relevant diploma program designed for professionals who love to stay ahead of the curve. A perfect blend of classroom and hands-on learning, our course enables students to learn about colored stones from mine to market. Our classrooms are equipped with latest gemological instruments, and a vast gemstone inventory.

Global Standards

World-Class Faculty

Industry Forward Curriculum

International Diploma

   Program Outline

  • Sophisticated Gemological Equipment: Hands-on training using the latest equipment.
  • Crystallography: Detailed study & identification of colored stones in their rough form.
  • Identification: Differentiate between gems and their lookalikes & synthetics.
  • Treatments: Skills to identify the most recent treatments & enhancements in gemstones.
  • Origin Determination: Understanding inclusion patterns to be able to identify and determine the geographic origin of the gemstone.
  • Laboratory Sessions: Work with advanced instruments during special laboratory sessions.

Course Faculty

You will learn from some of the most experienced faculty in the industry. Here is a quick introduction to our team, who are not only seasoned professionals but also impactful teachers and consultants.

MEENU BRIJESH VYAS (Global Head Gemologist)

Meenu Brijesh Vyas, a very highly regarded gemologist and trainer, comes with decades of experience in the field of gemology, having worked with gems for over 25 years of her life. She worked as Assistant Director at Gem Testing Laboratory (GJEPC), JAIPUR, before joining GSI in 2021. She has authored numerous gemology articles for various gemological journals and had the opportunity to work with many government authorities of India, and has trained many over the number of years.

SUNIL PAREEK (Senior Instructor)
(FGA,Gem-A London)

Sunil Pareek, a veteran gemologist, comes with over three decades of experience in the field of gemology. Mentored by numerous industry experts and having graduated with an FGA from Gem-A, Mr. Pareek has had the opportunity to work for the Gem and Jewellery Export Promotion Council & the Ministry of Commerce, India. He has co-authored numerous gemology articles for various gemological journals.


Potential Career Opportunities 

  • Appraiser
  • Auction and Museum House Consultant
  • Buyer
  • Colored Stone Grader
  • Dealer
  • Entrepreneur
  • Gemologist
  • Research Associate
  • Retailer
  • Sales Professional
  • Wholesaler
  • Manufacturer
  • Laboratory Specialist

Course Duration

14-week intensive diploma program
Monday – Friday
10:00 – 2:00 pm


Minimum 18 years of age
Applicants should hold an H.S.C. certificate (10+2) or equivalent

For enrollment or further queries, contact us:

Learn the skills to be successful with colored stones with Gemological Science International (GSI), an independent gemological organization, one of the largest gemological entities in the world.

GSI’s Colored Stone Professional diploma demonstrates your ability to identify and evaluate gems, understand their properties, determine geographic origin, and perform various gemological tests and procedures.

Your Colored Stone Professional diploma is a testament of your knowledge and skills in the field of gemology and a valuable addition to your professional portfolio.

GSI’s Colored Stone Profesional is a qualification that gives you a competitive edge in the gem & jewelry industry that lets you pursue a range of career paths in the field of gemology.

Sample Educational Certificate

Course Enrollment

Applicants can enroll in the course by downloading the application form from the website, visiting any GSI India branch, or emailing Applicants must submit the duly filled enrollment form with all necessary documents attached along with full payment made during enrollment.

Your admission is not confirmed until you submit a complete application, along with the required documents and payment. GSI will notify you of the acceptance or denial of your application.

Students will receive a detailed course schedule and learning material/kit after the enrollment process. Course duration may extend to adjust for holidays or special occasions.

Our course advisors are available throughout the week, from 10 am to 6 pm, to address your queries and guide you through the application and enrolment process. You can request an appointment by emailing or call us at 0141-2574650/651 | +91-6378-534-130 

Frequently Asked Questions

What is the certification offered after the completion of the course?

Students will be awarded the GSI Colored Stone Professional diploma after completion of course.

What are the qualifications of the instructors?

GSI instructors are highly qualified professionals with advanced degrees and decades of industry experience. You can learn more about our faculty by downloading our course brochure.

What are the prerequisites for the course?

All Applicants must be of least 18 years of age and should have a minimum higher secondary school certificate or 10 + 2 equivalent certificates to enroll in the course. (Click to view more)

Are there any lab facilities or equipment provided for the course?

Students can use professional-grade equipment in hands-on laboratory exercises and assignments during their class time and independent lab hours. These equipment includes (Click to view more)

Connect with Us

Contact Information: 

2nd Floor, Rajasthan Chamber Bhawan, 
Mirza Ismail Road (MI Road),
Jaipur 302003, Rajasthan

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