About PGT Labs

Precious Gem Testing Laboratory (PGTL) was established to fill a long felt void in the gem testing and certification services prevailing in Sri Lanka. PGTL is a State-Of-The-Art laboratory equipped with one of the most advanced gem testing equipment. PGTL is a One-Stop-Solution providing unbiased certification to Loose Stones and Mounted Jewellery in the form of Coloured Stones to Diamonds.
PGTL comprises with a team of highly qualified Gemologists including GIA qualified Graduate Gemologists having collectively over 35 years of experience in gem testing and certification services. PGTL follows GIA’s standards of Diamond grading and Coloured stone testing. PGTL is an international gem laboratory having presence in Sri Lanka and India with plans to opening soon in Thailand.

All gems are tested by atleast two gemologists before the certificates are issued. This coupled with the advantage of advanced testing equipment like FTIR; UV-VIS; Raman Spectrometer, etc hitherto assures an unprecedented accuracy of Reports. PGTL boasts proudly of international acceptance and reports reaching out to all over the world. PGTL has a very quick turnaround time. Reports can be verified online on our website www.pgtlabs.com
PGTL is committed to continuous research & development in updating skills and knowledge in the field of gemmology and diamond grading. PGTL services are catered from gem miners to large retail chains in the value chain process.
Together with other added advantages, PGTL is a growing and successful gem laboratory catering to the public with utmost Trust, Confidence and Integrity which adds value to your gem!
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