American International GemLab (AIG) have the latest equipment and latest industries trending knowledge to to test gemstone. We determine its type, quality, and authenticity of the gemstone. Our team have great experience in testing and grading on the basis of these parameter we grade the and generating the gemstone report and certificate. Which is always attached with your gemstone. We provide both digital and printed report so that you can verify both way. We test the gemstone on the different parameters which is below.
Our Grading Scale
Gemstone grading is analysing and specification of a gemstone’s quality and providing a specific grade based on various criteria. With the help of this process we determine the value, rarity, and overall desirability of a gemstone. There are various factor on which we decided the grading factor and each factor our importance and specify individual properties.
Every gemstone special and specific in terms of material and visual appearance. Before we generate the gemstone identification report and Gemstone certificate we pass so many process. We assure the quality and authenticity of the gemstone. So, many customer and clients have faith on us that made us Gem Best laboratory in Thailand.