Professional Gem Sciences

Laboratory, Ltd.

​5 S. Wabash Avenue, Suite 315​

Chicago, IL 60603

   

© Copyright 2019  PGSL

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Diamond Education

Whether you are a seasoned industry veteran or a newcomer to the world of diamonds, PGSL offers classes that build the skill set of the individual to make you more knowledgeable in the field. All courses emphasize practical, real-world application. This means nurturing skills that you will need to use in the course of everyday business transactions. The course descriptions listed below provide a brief synopsis of what the prospective student can expect from a class. 

Diamonds 200: Topics in Diamond Evaluation

This class focuses on developing sound techniques for consistently grading and evaluating diamonds. The course consists of twenty contact hours where roughly half of class time is dedicated to lab sessions. Lab sessions are hands-on opportunities for students to receive one-on-one instruction to reinforce the topics covered in lectures and readings. Students work with diamond simulants and treated stones (especially laser drilled and fracture filled stones), so that they will be able to identify the telltale signs of natural or artificial origin. Thorough discussions of value and cost-benefit analysis help a student understand pricing variables in the industry. Course material also introduces students to FTC and CIBJO guidelines relevant to the jewelry industry. Click here to view the course syllabus.​ All students who successfully complete this course will receive a Certificate of Completion.

 

Click the Register Now button at the top of the page to access the course application and registration form.

 

Diamonds 300: Advanced Diamond Grading

 

This course presents students with many common diamond grading dilemmas and offers standardized ways to approach them. Some of these questions include the problem of very strong blue fluorescence, borderline stones, and analyzing a diamond for recut potential. Numerous sample stones will be provided for the student to learn from, providing a hands-on approach to the subject matter. The course will also focus on the laboratory procedures for accurately identify color treated diamonds through irradiation and HPHT processes. All students who successfully complete this course will receive a Certificate of Completion.

 

Click the Register Now button at the top of the page to access the course application and registration form.

Diamonds 301: KM Laser Dill Treatment Detection


A one-day class dedicated solely to building the ability to identify diamonds that have been drilled through the internal laser drill method – also called KM Laser Drilling. Instructors will identify sample stones that have been drilled in this fashion and the student will replicate the illustrated techniques to find the telltale marks of treatment. All students who successfully complete this course will receive a Certificate of Completion.



Click the Register Now button at the top of the page to access the course application and registration form.

Diamonds 302: Topics in Fancy Diamond Evaluation


This course is dedicated to the advancement of color science in the jewelry industry. The curriculum explores the need for accurate color science in gemstones and introduces the student to the Munsell color order system. Lab time centers on learning proper terminology and will allow students ample opportunities to use The World of Color to grade fancy diamonds and gemstones under the supervision of an instructor. The curriculum explores the many challenges to consistent color assessment and offers numerous techniques for standardized, repeatable results. All students who successfully complete this course will receive a Certificate of Completion.

 

Click the Register Now button at the top of the page to access the course application and registration form.