Welcome to
Gemological Testing Laboratories of India
The Gemological Testing Laboratory is a gemological laboratory which is located in Surat, India. GTLI is a purely private laboratory, not related to any government lab.
Some facts about us
GTLI's supreme position in the gemological world is because of our updated testing techniques and instruments. The instruments we use are of latest technology and that helps in close monitoring while testing.
Gemological Testing Laboratories of India in Surat
We at GTLI continuously work upon gaining excellence and providing the best of services. Over the past few years we have been able to attain a good client base, as GTLI certificates bring confidence when buying or selling diamonds, gemstones and jewelry. Our total commitment to understanding consumer concerns has motivated GTLI to develop comprehensive analysis and clear documentation for consumers. This empowers jewelry buyers to focus on finding precisely what they want, with full assurance in the integrity and quality of the GTLI certification.
GTLI believes that credibility is earned through experience, integrity, and reputation. The knowledge we have gained through decades of experience in the jewelry industry is our backbone.
Experts & quality testing
Welcome to Gemological Testing Lab. A new breed of certification organisation in certifying diamonds and gemstones.
GTLI Aim
To bring simplicity, clarity, choice and value to the process for buyer or for seller gem stones with highest quality assurance and quality verification of bespoke gemstones and Jewellery. We assure to provide reliable, fast and professional job.
GTLI Vision
Our vision is to achieve excellence in service and complete customer satisfaction. It's all about providing the highest level of professionalism and services, to become the most preferred gemological laboratory.
GTLI Mission
We work hard to simplify the buying process, empower and educate our customers and ultimately help them make a purchase they will cherish for a lifetime with our quality gemstone grading certification called GTLI Certificate by Gemological Testing Lab.
GTLI Value
GTLI 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, GTLI must continue to be driven by those values of fairness and integrity with professional ethics.
Ultimate gem collection
Check the collection of gems along with all the details of precious stones.