Gemological instruments are important because in order to offer the best gems on the market, jewelers must first be able to correctly identify and guarantee the authenticity of the gems they are buying anf selling.

Sight alone is insufficient because so many gems are similarly colored and difficult to distinguish. Professional jewelers must recognize the variances in color, cut, and texture of different gems. We provide the highest quality gemological instruments and equipment.

National Jewelers Supplies carries full lines of gemological instruments and equipment for professional jewelers. We supply refractometers, dichroscops, chelsea filters, polariscopes, and various guages to help you in this process. We are proud to say that with our products, you do not have to sacrifice quality when buying at our affordable prices.

Click here for our full list of Gemological Instruments