Vintage Peyote Bird Turquoise Coral Heishi Native Style Necklace

Turquoise and Coral chip Inlay set in silver metal could be nickel silver? Beads are beautiful with a liquid silver look (just not sure on tube beads) and definitely beautiful heishi Turquoise and Coral chips and beads. 18" peyote pendant has Been cleaned to a new shine on the back. I'm not seeing stamps I think it's low grade silver