TGL places a premium not only on the quality of our grading expertise and customer service, but also on our values and high ethical standards. As we look to the future, TGL must continue to be driven by those values of fairness and integrity with professional ethics. TGL's Director has demonstrated his deep commitment to these core values and standards ensuring that at all times, TGL is attached to best business practices and policies...
TGL provides total commitment to understanding consumer concerns has motivated TGL to develop comprehensive analysis and clear documentation for consumers. This empowers jewellery buyers to focus on finding precisely what they want, with full assurance in the integrity and quality of the TGL certification. We offer the highest professional standards in lab testing. Our approach is voluntary - we chose to adhere to the highest professional and regulatory standards in order to provide you with th
Also known as: TGL Gem Testing Laboratory