Diamond certificate price check
A diamond certificate price check searches for the exact graded stone, not merely a similar one. Enter a GIA, IGI, or GCAL report number and CaratRank will look for retailer listings connected to that certificate.
Where to find the certificate number
The report number appears on the grading report and is often shown in the retailer listing. Enter the laboratory's full report number exactly as printed; spaces or a lab prefix can usually be normalized by the search.
What an exact-certificate match proves
A complete grading report number is the strongest public identifier for a loose diamond. When two retailer listings carry the same number and matching report details, they refer to the same certified stone, making their listed prices directly comparable.
A certificate match does not guarantee that a retailer still has access to the stone. Supplier inventory moves quickly, so confirm availability before paying.
If no exact match appears
The diamond may be exclusive to one seller, newly listed, already sold, or published without a report number. CaratRank can still show close alternatives based on the certificate's specifications so you have a market reference before deciding.
Frequently asked questions
Can I look up a diamond by GIA number?
Yes. Enter the full GIA report number to search for retailer listings associated with that diamond. You can separately verify the grading report with GIA.
Can I check an IGI lab-grown diamond's price?
Yes. Enter the IGI report number to look for the same certified lab-grown stone across supported retailer listings.
Does a matching certificate mean it is the same diamond?
A matching full report number is the strongest indicator that listings refer to the same graded stone. Always confirm the report details and inscription with the seller.
What if only one retailer lists the certificate?
You can review close alternatives with similar specifications for context, but those are different stones and should not be treated as exact price matches.