First, Congratulations on achieving your Coat of Arms. In my experience, I have seen far more crest rings than I have seen rings bearing the full arms. I happen to prefer the crest rings because the detail is more easily seen. You may also want to consider a "seal ring" which would have the crest engraved in reverse in order to leave a raised wax impression which can be read.

By the way, there are, indeed silver rings and alloy rings which look stunning.