It can be a debate on whether this is Zuni or Navajo. I have seen them done by both. We also think with this smaller stone it is Zuni, but Henry Sam does this same size. I think Henry used bezel cups, this looks like artist bezeled stone. I would call this Zuni and $900.
Thank you so much. I had a guy offer me $900 sight unseen and wondered hard on why so I thought best to bring it here. Guess he was not crazy. lol