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Your partner in grading, offering a one-stop solution for consumer confidence.

Founded on internationally accepted standards and equipped with decades of experience. JTR’s diamond and diamond jewellery grading institute blends traditional grading processes with the latest proprietary innovative technologies, ensuring that your diamonds are in safe hands.

JTR safeguards the gem and jewellery industry’s future with transparent grading practices.

A modern scientific complex of the level of the world’s leading research institutes, where an international team of experienced researchers and young scientists is engaged in the development of new products and research in the field of industry and the environment. Researchers and young scientists is engaged in the development of new products and research in the field of industry and the environment.
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Reports

Advanced diamond grading laboratory

Enjoy peace of mind as you appreciate the beauty of your diamonds with an JTR diamond grading report. Our innovative and comprehensive analysis will ensure you know exactly what you paid for – as they say, the devil is in the details.
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JTR Jewellery ReportJTR Natural Diamond Identification Report Mini
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Let’s talk about JTR’s diamond grading lab standards

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JTR’s management, staff, and gemmologists all adhere to the baseline of the International Diamond Council (IDC) Rule Book and JTR Laboratory is accredited by ISO in various standards including ISO/IEC 17025.

Standards and principles of JTR guarantees that the results generated by a laboratory are responsible transparent, and trustworthy.
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