Silber’s Fine Jewelry

Confidence begins with clear information

Before choosing a diamond, understand its origin and the documentation for the specific stone. A laboratory name on this page does not mean that every piece in our store has a report from that laboratory. Ask us to confirm the issuing laboratory, report number and documentation included with your chosen item before purchasing.

Natural versus lab-grown origin

Natural diamonds form in the earth. Lab-grown diamonds are created in a controlled laboratory environment. Both are diamonds, but their origin is different and should be clearly identified. Do not infer origin from appearance, a photograph or the word “diamond” alone. Check the product description and, where available, the laboratory report. If the information is unclear, ask us before ordering.

What a grading report can tell you

Depending on the laboratory and report type, a report may identify natural or laboratory-grown origin and describe carat weight, measurements, shape, color, clarity and cut assessments where applicable. It may also record treatments, identifying characteristics or a laser inscription. Report formats and the information provided differ, so read the actual document rather than assuming every report includes the same tests or grades.

A grading report describes the stone examined. It is not a price appraisal or a promise of resale value. A report for a center diamond does not automatically cover the ring's metal or its side stones. A report lookup alone does not establish that the stone in your possession matches that report.

How to check a report number

1. Find the issuing laboratory's full name and report number on the document.
2. Go directly to that laboratory's official website. For GIA, use its Report Check service; for IGI, use Verify Your Report. Enter the number exactly as shown and any additional details requested.
3. Compare the returned record with your document, including origin, shape, measurements, carat weight and other recorded characteristics.
4. If an inscription is recorded, ask a qualified gemologist to help compare it and the stone's characteristics with the report. An inscription or matching online number alone is not a substitute for examining the stone.
5. If no record appears, details differ or the issuer is unclear, contact the issuing laboratory and ask us for clarification before proceeding. For CGL, use the exact issuer and contact details on the report rather than assuming that similarly named laboratories are the same organization.

GIA official website | IGI official website

Laboratories referenced in our partner information

GIA, Gemological Institute of America: Issues gemological reports. GIA does not certify or appraise diamonds; its reports provide technical findings for the item examined.

IGI, International Gemological Institute: Provides reports identifying natural or laboratory-grown origin and documenting characteristics according to the report type. Its online verification service lets buyers check report records.

CGL: Retained from our existing partner information. Confirm the laboratory's full legal name and the specific report supplied for your item. We do not imply that organizations sharing the initials CGL are interchangeable or that every item has a CGL report.

Our other existing industry references

Our previous partner page also referenced Aloni Diamonds Ltd, Rapaport Group / RapNet and the Israel Diamond Exchange (IDE). These references are not a grading report, a certification of an individual item, or a claim that those organizations endorse every product.

Only the documentation confirmed for your item

We do not promise certificates that we do not issue. Naming a laboratory does not mean Silber’s Fine Jewelry issues that laboratory's reports, holds its accreditation or supplies its documentation with every order. Only documentation explicitly confirmed for your selected item should be expected. Please ask us to confirm any report or certificate before purchasing.

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