01
Before you compare prices
Confirm whether the description concerns emerald or green beryl, whether the stone has been tested for treatment, and what supports the Nigerian origin claim.
Ask for weight, dimensions, multiple lighting views, return terms and the complete laboratory report where one exists.
02
Read the evidence label
Laboratory confirmed means a named laboratory has stated the finding. Supplier provenance means the origin is based on the supply chain. Reported origin signals a claim without independent confirmation.
No seller should blur those categories. Uncertainty is not a flaw in disclosure; hiding it is.