Help me please? I would like to know about this beautiful necklace I got in a sterling junk lot. Can anyone help me please?!

I purchased a sterling junk lot and this beautiful old necklace was in it. If anyone can help me maybe with the maker or time period please? I believe it is Navajo though I am not completely sure about that! Any help is definitely appreciated. Thank you all for letting me join this site. I feel I have learned so much from you all!!