GIA - Gemological Institute Of America

GIA is a Charitable Trust ensuring the public by holding Highest Standards for Gems and Jewels. The GIA Identification & Origin Report describes whether the stone is natural or synthetic, identifies the type of gemstone along with an opinion on the geographic origin of the stone, and includes any detectable treatments. This report also contains a detailed description of the gemstone such as cut, shape, weight, measurement, and colour, and includes a photograph of the gemstone. This certification is available for ruby, sapphire, emerald, Paraiba tourmaline, red spinel and alexandrite only.