Can a gemstone certificate be forged?

Yes, gemstone certificates can be and often are forged by unscrupulous sellers to represent synthetic, treated, or plain low-quality stones as extremely valuable natural gems. In other words, buyers should always confirm the certificate straight from the issuing gemmological laboratory, not just trust the paper.

There are also high-quality fake reports that look like they are from respected institutions, like GIA, SSEF, or AGL. Because of that, better laboratories have introduced advanced protection methods, microprinting, holograms, and QR codes, for example. The safest option to authenticate a gemstone report is to use the lab’s official online database, then type in the report number and check that the physical dimensions and all the stated features match the digital entry exactly.