About us

The National Gem Lab is small gemological laboratory which is located in Chennai, India, NGL is Purely Private Laboratory not related to any Government lab.  We are trying to provide genuine gemstone certificate by examine and determine the authenticity of gemstone with our best knowledge to our customers honestly.  We have more than 20+ Years of experience in the Gemology Field, We have started our Gemology laboratory in 2015. We made gem lab report easy to verify your gem certificate in our website to authenticate your report.  

We are very passionate to collect enormous type of natural gemstones, rough stones and gemological books to identify and analyse the gemstone without any hassle. We have our own Gemstone inclusion gallery of various stones. 

Our mission is to provide best gemstone certificate to our customers in an affordable price.

We have taken some reference from few websites and books to publish best knowledge to you.






Gems: Michael O'Donoghue

Photoatlas of gemstone inclusions (Vol 1, 2, 3)

Mineralogy Dexter perkins

color encyclopedia of gemstones

Gemstone of the world

Gem Identification made easy