Vintage Teal Necklace

Vintage teal statement necklace was purchased at a vintage shop in the early 2000’s so I am not sure the original date it was made. It’s a teal and silver beaded necklace with the twist clasp in the back. Hits just at or a little below the collar bone. It has always had some discoloration in the teal portions, though I don’t think that was the original look of the necklace. So some aging has altered the colors.