KhyatiGems knowledge library
Reading a gemstone laboratory report
Read the identification, detected treatments and stated scope of a laboratory report before drawing conclusions about an individual gemstone.
AI-assisted source review · 2026-10-16. No named gemologist review is claimed. How this reference was reviewed.
Match the report to the stone
A GIA coloured-stone identification report records material identity, natural or laboratory-grown origin and detectable treatments, together with descriptive information. These are findings about the examined material. Start by matching the report number and listed dimensions or other identifying details to the item you are considering.
Read all comments and limitations. A seller summary can omit a qualification that matters to your decision. If the report and listing disagree, ask for an explanation before proceeding. A familiar laboratory name does not make every seller statement part of the examination.
Understand the scope
Identification, geographic origin and monetary valuation are separate questions. Choose documentation that addresses the question you need answered. Do not infer geographic origin from an identification statement, and do not read an educational property table as a report on the offered stone.
Use the laboratory’s official verification process where available and inspect the actual report rather than an edited screenshot. Verification of a report record should still be combined with checking that it relates to the correct item.
Keep the report, listing and seller answers together. A report informs a decision; it does not replace reading the sale terms or assessing suitability. When wording is unclear, seek clarification from the issuing laboratory or a suitably qualified professional.
Sources and further reading
- GIA reference Checked 2026-10-16