About Gem Testing Lab (ISO Certified)

Gem Testing Lab (ISO registered Certified Lab ) or GTL is a Nonprofit Organization Dedicated To Research in the field of Gemology .

GTL Certificate clearly discloses the details of any item it accompanies , providing confidence for both buyer and seller.

GTL, Lucknow now has become India’s  Formost Authority in Gemstone Certification GTL is a Service Laboratory Which Provides Service To Public , Traders , Whole Sailors Retailers against nominal Charges .

As the Market Bloomed , many new gemstone , synthetics and Treated Product started Flooding the market and here after , advance and analytical Methods of gem identification started to replace traditional and stander method s. With increase in awareness for the simulants and synthetic, the traders all over the world started demanding the official authenticity certificates.

Why US?

The GTL identifies All Types Of stone , Including Coloured gemstone set in jewellery Pieces as well as rough stone. Till Date the institute has certified thousands of Gemstone at its Lab .

Today the Certification of Gemstone Become an absolute necessity in the course of day to day business because there are many synthetic and treated Gem materials emerging in the Market .

Key Features of The Certification:-
» Species And Varieties Of Gemstone
» Natural And Synthetic
» Treatment / Enhancements
» Gemstone Packet Lot
» Mobile Lab Service

Our Achievement

  • Graduate Gemologist
  • Certification of Registration
  • Graduate Colored Stones
  • Diploma in Gem Identification
  • Pearl Grading

  • Gemstone Identification
  • Diamond Jewellery Grading
  • Diamond Screening

For Gemstone identification, stone can be submitted in the form of Cut and polished, rough, mounted in jewellery, carving, and beads (Loose or in string). This category is further divided in two categories

A single Stone identification report is issued for single stones. Detected treatments/enhancements are routinely mentioned in the report irrespective of customer demand.

 

 

Diamond jewellery grading report is issued for Diamonds mounted in jewellery (ear tops, bangles, pendant etc). Before issuing Diamond jewellery grading report, all diamonds are screened for the possibility of Synthetic Diamond. In case, Jewellery is found to have possibility of synthetic diamond, report is not issued for that jewellery and customer is asked to change the doubtful diamonds.

Although all diamonds are screened for the possibility of synthetic Diamond, but jewellery grading report is not identification report for the diamonds.

Jewellery studded with clarity enhanced diamonds are not graded and so no grading report is issued for the same, customer is asked to change the doubtful diamonds to get them graded.

Screening of colorless to near-colorless diamond shall be done and result is reported as per the analysis precisely by the instrument ‘Synthdetect’ and ‘Qcheck’ only.

Our Working Proccess

Analyse Your Gemstone

Testing Begins

Reports Delivered