Cool School University
Welcome to Cool School University. CSU was developed by David Bellman, GIA Graduate Gemologist and founder of Bellman Jewelers. The University’s first course on diamond grading is designed to help consumers become better educated about how the diamond grading system works and to teach you diamond grading skills. It also includes grading information most retail jewelry stores don’t want you to know.
For 15 years this course was only available on the Bellman Jewelers website, now David has converted the text version of his in depth diamond grading course into a state-of-the-art video education program. Now this valuable information is available to anyone interested in learning the truth about diamond grading, from one of the top retail diamond dealers in the country.
The course is free and if you complete the course, you will receive a diploma distinguishing you as a “Certified Retail Diamond Buyer”