Hi, I looked and added to 4 pages where was stated 22ct or 24ct.
For any other - I don't know what is the exact gold finest. So I keep it without finest unless anybody is sure what it should be and will sent the change requests.
Unfortunatelly the Commonwalth Mint which is producing the Alderney coins from 2017, they not publish a lot of information about. Gold coins are usually manufactured in small mintage, I found them after some years on different auctions but frequently with a lot missing info in desciprion.
Anyone with info about missing data, welecome to send the change requests.