Certificate of Authenticity

Every gemstone offered by Demidoff is a natural Ural demantoid, emerald or alexandrite, sourced directly from the Korkodin deposit. On request, each stone can be accompanied by an independent gemological certificate that confirms its natural origin and main characteristics.

Certificates are issued by recognised gemological laboratories and state the species, weight, dimensions, color and clarity of the stone. If you would like a certificate for a particular gem, please contact us and our team will arrange it for you.