Nadijah has most likely revealed it to her Gerudo friends/compatriots like "Look what I found guys it's shiny", so they would know, at least.

Also! I went ahead and edited her Scimitar to be a pair of Scimitars in the CS, since that seems to largely be what the Gerudo use. If that's not cool, I'll gladly edit it back though. Just wanted to give a heads up since I forgot to in my last post.