Native American sterling Bird inlay ring

Really beautiful sterling hand made ring. It's unsigned and not stamped but tested .925 silver when I bought it. Many artisan jewelry does not have a stamp. That is required for sale in retail stores etc. It confused me forever but that is the simplest way to state it. I think its a size 5 and will re measure TY. Please ask questions or if you know the tribe or name I always appreciate that. Thanks