Silver Certificate gives the recipient the right to get one of the AKVIS programs from the gold list: https://akvis.com/en/gift-certificates.php
Silver Certificate gives the recipient the right to get one of the AKVIS programs from the silver list: https://akvis.com/en/gift-certificates.php
Gold Certificate gives the recipient the right to get one of the AKVIS programs from the gold list: https://akvis.com/en/gift-certificates.php