The short answer
- Type the address of the laboratory’s own website yourself. Never use a link or QR code supplied by the seller without checking where it leads.
- Enter the report number, plus any second field the laboratory asks for, such as the weight.
- Compare every line with the item in your hand: species or material, weight, measurements, shape, colour, treatment and the photograph.
A report that is found online but does not match your item proves nothing about your item. A report that cannot be found should be explained by the laboratory itself, not by the seller.
Why checking the number matters
A paper report or PDF is easy to copy or alter. The laboratory’s database is the record that counts. Checking it confirms two things:
- The report exists and was issued by that laboratory.
- It describes an item like yours. Matching weight and measurements are the main safeguard against a genuine report being reused for a different stone or bead.
It does not confirm that the item you received is the exact item that was tested. Only physical identifiers can link them closely: weight to the hundredth of a carat, measurements, an inscription (on some diamonds) or the photograph.
Laboratory by laboratory
The routes below were checked on 10 October 2026. Laboratories change their sites, so if a route has moved, search the laboratory’s own domain.
| Laboratory | Where to check | What you usually need | Notes |
|---|---|---|---|
| GJSPC (New Delhi) | gjspc.in → Report / Check Report (`gjspc.in/ReportCheck`) | Report number or document number | The site states that “each & every report can be verified” by report or document number. It offers rudraksha, gemstone, jewellery and diamond reports (GJSPC) |
| IGI | igi.org → Verify Your Report | Report number; for diamonds, also the carat weight | IGI issues coloured stone reports as well as diamond reports |
| GIA | gia.edu → Report Check | Report number (and, for some reports, carat weight) | GIA Report Check covers its current reports; see gia.edu |
| GRS (GemResearch Swisslab) | gemresearch.ch → Report Verification, or the QR code on the report | Report number and the details it asks for | GRS says its database is updated at least every two months, that not every report may be in it, and that online support is limited to 5 years; email GRS if a report is not found (GRS licence terms) |
| IIGJ Lab (Jaipur, New Delhi) | Online verification via its report portal | Report number | Our laboratory comparison gives its published route |
Rudraksha reports
For rudraksha, check these on the report:
- the mukhi count;
- size and weight;
- the origin stated, if the report gives one;
- whether the laboratory used radiography (X-ray);
- any comment on modification or enhancement, such as filling, joining or carved lines.
GJSPC’s rudraksha page says its reports cover size, shape, weight, origin, modifications and enhancements, and mentions radiography among the tests (GJSPC rudraksha testing). Our guide to real and fake rudraksha explains the common forms of tampering.
What must match
Use this as a line-by-line checklist:
| Report line | Check against your item |
|---|---|
| Species and variety (e.g. “Natural corundum, ruby”) | The seller’s description and invoice |
| Weight (ct or g) | Weigh it on a jeweller’s scale; small differences can come from rounding, large ones cannot |
| Measurements (mm) | Measure with a calliper or ask the seller to show it |
| Shape and cut, or mukhi count | Look, and count |
| Colour description | Broadly the same in daylight |
| Treatment or comments | Must match what the seller told you in writing |
| Photograph | Compare inclusions, shape and markings |
| Date and report type | A very old report on a re-sold item may not reflect later treatment or damage |
What a report establishes, and what it does not
- It can establish: what the material is; whether it is natural, synthetic or imitation; detectable treatments; sometimes the geographic origin (for coloured stones, origin is an expert opinion, not a certainty); and, for rudraksha, the mukhi count and signs of tampering.
- It does not establish: market value (unless it is an appraisal); “quality” in a buyer’s sense, unless it is a grading report; or any spiritual or astrological effect.
- Laboratories differ. Some test thoroughly; some issue brief identification cards. A report is only as good as the laboratory that issued it. Our laboratory comparison explains what each states it tests.
- Seller and laboratory independence. Ask whether the seller and the laboratory are connected. An in-house report can be accurate, but you should know whose word you are relying on.
If a report cannot be found or does not match
- Re-type the number carefully. Check O and 0, I and 1, and prefixes.
- Try the second identifier the laboratory accepts, such as a document number.
- Contact the laboratory directly with a photo of the report. Ask whether it issued it and whether the details match.
- Do not accept a “new” report from the seller as a fix until the laboratory has explained the old one.
- If you have already paid, tell the seller in writing, and keep screenshots of the failed check.
Questions to ask before you send something for testing
- What exactly will the report state: identity only, treatments, origin, grade?
- What methods will be used? For rudraksha, ask whether radiography is included.
- How long does it take, and what does it cost for this item?
- Can the report be verified online, and for how long?
- Will the report include a photograph and weight?
FAQ
Can I trust a QR code on the report?
Only if it takes you to the laboratory’s own domain. Read the address in your browser before trusting the page. When in doubt, type the laboratory’s address yourself.
The weight on the report differs slightly from my scale. Is that a problem?
Small differences from rounding or scale accuracy are normal. A difference you can see on an ordinary jeweller’s scale, or a different shape or size, is a reason to stop and ask.
Is a report from the seller’s own laboratory worthless?
Not necessarily, but it is not independent. Prefer a laboratory with no commercial tie to the seller, or obtain a second opinion for expensive items.
Do all laboratories report treatments?
Most identification reports comment on detectable treatments, but wording and depth vary. If the treatment line is blank, ask the laboratory what that means.
Does a report certify that a gemstone suits my horoscope?
No. Laboratory reports deal with material facts. Astrological suitability is a matter of belief and is outside what a laboratory tests.
Sources
- GJSPC Laboratory and rudraksha testing, checked 10 October 2026.
- GRS licence agreement and report verification terms, checked 10 October 2026.
- GIA, Report Check, checked 10 October 2026.
- IGI, Verify Your Report, checked 10 October 2026.
