Program Number / Title: PG21 – Graduate Pearls Grader Program.
Clock Hours / Instructional Weeks: 24 clock hours program enrollment.
(6 frontal lessons and 18 lab sessions).
Total Charges: 115.00 OMR (299.00 USD) for complete program enrollment.
Time Limitation: 3 months.
Final Qualification: GIG International Diploma.

The GIG Graduate Pearls Grader Program provides the product knowledge and grading skills to effectively buy inventory and build confidence when buying and selling Akoya, South Sea, Tahitian and freshwater pearls.
You will be taught the Pearl Value Factors: size, shape, color, luster, surface quality, nacre quality and matching – the criteria for assessing the value of pearls. Topics covered include post-harvest treatments, imitation pearls and pearl testing.

What You Will Learn:

  • Explain the differences between natural and cultured pearls.
  • Evaluate and grade cultured pearls based on Pearl Value Factors.
  • Describe cultured pearl types and their sources.
  • Identify “other” pearl types found in the marketplace.
  • Describe common pearl treatments.
  • Understand the relationship of beauty, value, and quality.
  • Learn the process of pearl culturing and marketing.

What You Earn:

Graduate Pearls Grader Diploma.

Occupations May Include:

Jewelry Business Owner, Pearl Buyer, Pearl Sorter/Grader, Retailer, Wholesaler.

Don't Hesitate, we are here to help you

Text us or call us for further info. Our experts are at your disposal to understand your potential in Gemology field.

Contact us



© 2020 GIG Gulf Institute of Gemology organization. All rights reserved.


Fabio Damico, Chief Executive Officer

“I can easily compare our Gem Lab to and Research Department to a spaceship. We can explore the unknown, we can easily face all the modern market challenges and, most important, win them.”

Lisa Greggio, Gemological Laboratory

“I never thought that my passion and experience for meteorites would play a
decisive role in GIG. Here we have widened the range of the Laboratory activity bringing the limits beyond the normal gemological context.”

Maya Musa, Research Department Director.

“Gemology has to be a science, not just a discipline. As gemologists have to be scientists. This is the future of gemology. Future that is already the present in GIG.”

Evanghelia Kountouraki , Luxury Academy Director

“I prepare the students to the most difficult challenge: life. The jewelery trade is a jungle, and all my students have to know not only how to survive, but also I to be a guide for others.”

Sharifa Al Badi, Press Officer

“The first time I walked in GIG, I saw immediately the true heart of it: technology, professionalism and passion, the perfect mix. My daily challenge is to communicate it.”