Generally all diamonds and gemstones look similar when seen naked eye but they can have significant differences in their costing. A GTLI Certificate clearly discloses the details of any item it accompanies, providing confidence for both buyer and seller.

The quality of a precious stone is determined by its 4 C’s i.e. Cut, Color, Clarity and Carat Weight. We strictly follow 4 C’s to certify all diamonds and gemstones as it plays a vital role in determining its value. Our experts use powerful analytic tools to detect CVDs, artificial diamonds, synthetics, treatments and enhancement processes.

A certificate from GTLI gives confidence to traders, consumers and exporters. We provide certification for diamonds, colored gemstones and jewelry, GTLI is a standard of excellence for industry professionals and consumers around the world.