Reports & Verification

Laboratory Report, Certificate or Appraisal?

These words are often used together in jewelry discussions, but they do not necessarily describe the same document.

Understanding their purpose helps you request the information you actually need.

Laboratory report

A laboratory report records the examination results issued for an item within the selected service. It may identify a material, describe diamond characteristics, or address other specified gemological questions.

Read the report's full title and scope rather than assuming it addresses every claim in a sales description.

Certificate

Certificate is a common commercial term for a gemological report. The word itself does not establish a separate guarantee or expand the examination performed.

Use the issuing laboratory's actual document name and read its terms and conclusions.

Appraisal

An appraisal concerns monetary value for a stated purpose and context. A grading report is not automatically an appraisal, even though its information may help an appraiser understand the item.

If an insurer or another organization requires a valuation, ask what documentation and qualifications it accepts.

Purchase and ownership records

An invoice or transfer record addresses another aspect of an item. A laboratory report should not be treated as a replacement for the records supporting a transaction or ownership history.

Keep those documents distinguishable so each can be evaluated for what it actually establishes.

Choose the document for the question

For material identity, discuss an appropriate examination. For reported diamond characteristics, discuss grading scope. For a monetary valuation, identify the relevant appraisal requirement. For ownership history, preserve the transaction records.

If more than one document is needed, keep them together without presenting one as a substitute for another.

Avoid an all-purpose assumption

A report number does not automatically establish present condition, ownership, ethical sourcing, or a future selling price. Ask for evidence specific to those subjects when they matter.

A clear understanding of document purpose makes the whole discussion more useful.

Further reading: IGI: Laboratory reports and value information