About Kassoy

For almost 90 years, KASSOY has been a proud supplier of quality tools, equipment, and retail supplies for the gemological and jewelry industries. We aren't just distributors of products; we are members of the gem and jewelry community, and believe it is our duty to provide our customers with Knowledge, Quality, and Service.

As it was in our beginnings in New York's Diamond District and in our present as an ecommerce company, the KASSOY Team continuously strives to be at the forefront of technology, bringing you the best of what you need in times of constant change and development within the industry.

KASSOY is known for carrying the best gemological microscopes, the largest selection of loupes; being a leading distributor of gold and diamond scales, diamond grading lamps, and Diamond, Moissanite, and CVD/HPHT Diamond Testers. We are also the leading supplier of thermal transfer tags and printers of the finest quality.

Whatever it is you're looking for, we welcome you to explore our website, and hope that you will give us a call at (800) 4-KASSOY. Our knowledgeable team is standing by, ready to answer any questions you have, or help lead you in the right direction.