Hessonite · Certification
Certified Natural Hessonite (Gomed): What to Verify
The most important line on a hessonite certificate is species confirmation — that the stone is genuine grossular garnet (hessonite) and not a cheaper garnet variety, glass, or other imitation sold under the Gomed name. Since treatment is uncommon for this stone, a report should also simply confirm the material is natural and untreated, which is the more typical case for hessonite than for most colored gemstones.
Our authenticity standard for Hessonite
Whenever a certificate is available, it's shared with you before you pay — the same commitment described in full on our site-wide Authenticity & Certification page. Because our dealer network sources through multiple independent gemological laboratories, the specific issuing lab may vary by stone; what stays constant is that the report is independent, not a seller's own letterhead.
Once you have a report number, most independent laboratories offer free online verification — compare the certificate in your hands against what the lab's own database shows before finalizing any purchase.
Ready to see it applied to a real stone? See current Hessonite buying guidance and Hessonite pricing.
Common Hessonite Certification Questions
What should a hessonite certificate specifically confirm?
That the stone is genuine grossular garnet (hessonite), not a cheaper garnet variety or glass imitation, and that it's natural and untreated — which is the typical, expected case for this particular gemstone.
Can lab testing tell hessonite apart from other garnets?
Yes — standard gemological tests (refractive index and specific gravity in particular) reliably distinguish grossular garnet hessonite from other garnet species sometimes substituted for it.
Have a Certificate You'd Like Explained?
Our team is happy to walk you through any hessonite report before you buy.