What word describes a very pure level of silver?

Greyjoy of Skellige, No. They are saying sterling is " a" fine grade, not the only one. Its alloy addition makes it more practical. "Fine"is too soft, and better for ingots and bulleon.

Dorothy, Hmh! sometimes we just can't explain how we feel because our feelings are to deep for words!! that's how I have been feeling a lot of times!! lately!!

I DON'T REMEMBER HOW I KNOW THAT..

Shouldn't the answer be "fine" silver, then?