Vintage Sterling Silver Native Pearl Black Onyx Beaded Necklace 34in Chain 925

This is a vintage sterling silver and black onyx beaded necklace. It is probably Native American made, it is marked simply "STERLING" without a makers mark. It is made of round ribbed 925 silver beads called Native pearls, Navajo pearls, or desert pearls, plus round black Onyx beads. They are strung on a thin sterling silver chain necklace which is 34 inches long. The silver beads are in 3 sections, each section is graduated with the largest bead in its center. This necklace belonged to my grandmother who took great care of her beloved jewelry. She would love that it find a new home to be worn and cherished once again. In great condition. About 63 grams.