Rough turquoise necklace with amber and faceted beads artisan vintage ll2440

Great casual necklace made of genuine turquoise and accents of amber and faceted plastic beads. The clasp is a small toggle in brass. The turquoise is mixed rough bits with a focal piece sort of in the shape of a butterfly. The faceted beads are plastic and have an aurora borealis finish in a dark rust color. The two amber accents may or may not be genuine. I don't know how to tell. They do have the sun spangle inclusions. The necklace is 17.5 inches and would be great in the neckline of a western shirt. Excellent used condition. This is a handmade artisan piece.