Lab-grown gems · Check a reportFor jewellers · B2B supply
Consultation
Casta Diva · Lab-grown gems

Check the report. Know the stone.

Use the report number to open the issuing laboratory's official lookup. Match the returned details to the stone and the document you have been offered.

Official report lookup

Check your report at its source

Your report number goes directly to the issuing laboratory's secure website. We do not alter the report results.

igi.org

Your number is passed directly to the official report check at igi.org.

Example: LG6412883705 or a numeric report number

Four checks before you commit

Report number

Match the issuer and report number with the official lookup.

Material & origin

Read the laboratory-grown disclosure and any treatment comments.

Weight & measurements

Compare carat weight, shape, length, width and depth.

The physical stone

Check any inscription. A valid number alone does not identify the stone.

Compare the details

Check the report number, laboratory-grown disclosure, shape, carat weight and measurements. Review colour, clarity and any comments or treatments recorded.

A lookup is not physical identification

A valid report number does not by itself prove that a particular stone matches that report. Compare the inscription where applicable and seek an independent examination when needed.

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