GIA Gem Instruments and Books

GIA Instruments and Bookstore is located in GIA's Headquarters in Carlsbad, California. All orders from the online catalogue will be processed directly through GIA Gem Instruments.GIA London operates only as an educational institute. 

Over Half a Century of Uncompromising Commitment to Quality

© GIA

GIA Gem Instruments™ works hand-in-hand with the GIA Gem Trade Laboratory, the GIA educational staff, and the jewellery trade in developing the instruments of today that prepare you for the challenges of tomorrow. You can be assured of precise, problem-free operation and instruments styled to impress your customers.


Since the first GIA Gem Instrument was registered in the early 1930's, we've been building products you can trust that put the power of knowledge on your side. They help you buy, grade, and appraise with increased accuracy. And give you a competitive edge.

GIA Gem Instruments™ and Bookstore helps you unlock the mysteries contained in the art and science of gemmology and jewellery. GIA now provides DiamondView™ and DiamondSure™, two products that screen and detect synthethic diamonds. Click here for information.

Everything we offer the trade has the day-to-day practicality and utility to profoundly benefit your bottom line.

For instance, GIA Gem Instruments™ GemoLite Microscopes are used to sell more diamonds and gemstones than any other scope in the entire western hemisphere. With their ease of use, versatility, and reliability, the vast majority of professionals use GemoLites to share the intricacies of gemstones with their customers – and close sales.

And when the same professionals need definitive information for their highly specialized interests, they, once again, turn to GIA Gem Instruments™ and Bookstore.

Precision. Practicality. Quality. Why not browse through the online catalog of quality instruments – right now?