: Considered the global standard for gemstone grading. You can verify any GIA report using their official GIA Report Check .

: Selling a diamond with a fake certificate is considered fraud and can lead to criminal charges or civil lawsuits.

: If you are unsure about a certificate provided by a seller, take the stone to an independent, certified appraiser who is not affiliated with the sale.

: Almost all major labs provide a free online portal where you can enter the report number to see if it matches the data in their system.

: Genuine reports include holograms, microprint lines, and QR codes that are difficult to replicate.

To ensure a diamond's value and authenticity, always look for reports from these internationally recognized institutions: