This vintage knotted 925 turquoise disc graduated bead necklace is likely of Native American origin, featuring blue turquoise stone discs with a sterling silver toggle. The necklace has a length of 26 inches, with a beaded and knotted style that adds a unique touch to its design. The disc-shaped main stones give it a distinctive look, while the Southwest US likely source adds a regional flair to this unisex adults' piece of jewelry.
There are a couple chipped discs as shown in photos.