SGTL is very well equipped with all classical / standard gemmological instruments and advanced techniques like FTIR and EDXRF spectrometers. SGTL has prepared and maintains a standardised nomenclature in accordance with the international CIBJO standandards.
The SGTL diamond graders report includes an assessment of a diamonds 4cs color, clarity cut and carat weight along with a plotted diagram of its clarity characteristics and a graphic representation of a diamond properties for standard round brilliant cut diamond follows in the D to 2 color range the report also includes a SGTL cut grade.
The SGTL laboratory issue diamond grades report for mounted or unmounted loose or fitting in jewelleries natural diamond the D to 2 color range that weight 0.10 carats or more SGTL diamond gracing report are not issued synthetics.
Every specimen is examined by two gemmologists independently. The results are then correlated and a report is issued. Testing is carried out by following the pre-determined criteria strictly. In some cases a situation arises wherein there is a difference of opinion among the gemmologists; in such cases the specimen maybe returned without an identification report.
If you would like to ask a question or need custom quote, please email me or call me at 080-22288855 or 9164558855.