Important Limitations

Article(s) of significant value always come with important documentation. GTLI’s prime motive is to provide the necessary information to the jewelry buyers with full assurance in the integrity and quality of the GTLI certification.

People around the globe trust GTLI reports because:

• GTLI has its roots in Surat, Gujrat which is the hub of Cut & Polished diamonds. Here we use latest technologies and experienced staff.
• At GTLI we test every stone to determine its natural or synthetic quality if we are asked for it.
• Every diamond is tested for laser-drilling, fracture-filling, irradiation, high pressure/high temperature (HPHT) and chemical vapour deposition (CVD) if we are asked for it.
• GTLI operates under a set of core principles designed to protect the objectivity and accuracy of its reports, including anonymity, equality (with all customers and diamonds), security, and globally consistent standards and practices.
• At GTLI, We have different charges for different types of certification that depends upon clients certification requirement. We check diamonds (articles) for laser-drilling, fracture-filling, irradiation, high pressure/high temperature (HPHT), chemical vapour deposition (CVD), its natural or synthetic only if we are asked for it.