The true value of your diamond, established
with scientific accuracy.
JTR designs and builds the detection instruments the diamond trade relies on. Each one is grounded in our own gemology laboratories and research center, and shared with the trade through our education programs.
Our gemology labs and research center generate the expertise. We engineer it into instruments, and teach it to the trade.
The knowledge base
Accredited grading laboratories and a research center where seasoned graders and rising scientists advance the methods behind confident trade.
Inside the labsBuilt on that expertise
What we're best known for: diamond verification devices and optics we design and produce in-house, turning laboratory science into tools for daily work.
See the rangeShared with the trade
Diamond, gemology and jewelry courses that pass our expertise to jewelers, appraisers and the wider trade.
Browse programsInstruments we design and build ourselves
From on-device auto-detection to the jeweler's pocket, JTR hardware carries laboratory-grade certainty wherever the work happens.
REVEAL Diamond Detector 3S
On-device Auto-Detection classifies every stone, up to 100 loose diamonds per batch, 2× faster
REVEAL Diamond Detector 2S
100% lab-grown detection across CVD, HPHT and simulants. Portable enough to work anywhere.
LOUPE S
A precision 10× triplet loupe with a color-corrected, distortion-free field. The everyday companion to your REVEAL workflow.
Accredited by the IAS
Independent staff and controlled workflows keep results consistent and defensible, report after report.
A laboratory you can put your name behind
Our modern gemological complex, on par with the world's leading research institutes, is where the expertise behind our instruments is made. JTR blends traditional grading with proprietary technologies, so every diamond and jewel is documented with clarity, transparency and trust.
We teach what we know
The same expertise that shapes our labs and instruments is passed on to the trade: practical diamond, gemology and jewelry courses for jewelers, appraisers and future graders.
Basic Diamond Course: The 4 C’s
Carat, color, clarity and cut, taught through hands-on grading and loupe work.
Synthetic Diamonds & Detection
Screen and identify CVD & HPHT stones with the REVEAL Diamond Detector 2S.
Certified Diamond Expert
Expert command of diamond science, the market, cutting and optics.
Certified Gemologist
The full science of gems, from crystal lattice to certified report.
One institute, three hubs across the world
Research, production and commercial teams working together across time zones to keep the trade equipped and informed.
Commercial and client services for the Americas: sales, support and partnerships across the region.
Where our detection instruments and optics are manufactured. Precision production at scale.
Home to our gemology laboratories, research center and education programs.
Trusted by leading names in the trade
EMPIRE
