Separate a description from a laboratory finding
A seller description tells you what is being represented. A laboratory report records an examination of a particular item. GIA describes its colored stone identification service as identifying the material and listing detectable treatments. Origin information is a separate service for eligible materials. A seller statement should not be presented as though that examination has already taken place.
Be precise about treatment language
When treatment status matters, ask exactly what the wording means and what evidence supports it. A phrase such as “unheated” addresses a particular treatment claim; do not expand it into a guarantee about every possible treatment. GIA’s treatment guide explains that processes differ and can affect appearance or care. Ask whether the information applies to the whole parcel or only to an examined stone.
Read clarity claims at the right scale
The peridot parcel on this site is described by the seller as a 1,400-carat lot with most stones eye-clean. That is not a promise that every stone is identical or free of inclusions under magnification. Ask how the lot was assessed, whether the images represent the whole parcel, and whether individual stones can be examined for your intended use.
Match a report to the actual item
If a report is available, request the issuing laboratory, report number, and a readable copy. Compare the described item with the listing and ask which stone it covers if you are considering a parcel. A report for one sample should not quietly become a claim about every stone in a lot. Record any unanswered questions in your quote request.
Make documentation part of the request
Tell us before a quote is finalized if independent identification, treatment information, or an origin opinion is a condition of your purchase. Availability and any arrangements for additional examination need confirmation. The photographs and seller notes in this collection are a starting point for that discussion, not a substitute for the documentation you require.
