Vintage Jewelry American Turquoise Flat Large Disc Shaped Nugget Beaded Necklace. Really pretty Vintage Turquoise necklace! I am not One hundred percent sure of the authenticity of the necklace as it did pass the acetone test but I have had other people say that the stones have too much uniformity. I do not know the provenance personally. I will say that it did pass the acetone test without a trace of dye and that looking into the middle of the stones holes I did not see any white. This is why I am not pricing it like I would if I knew it was totally authentic this necklace would be worth several hundred dollars. Either way it is a very pretty quality heavyweight necklace. Has a beautiful teal and brown matrix coloring throughout. I believe this is Lone Mountain Spider web Turquoise that has been stabilized and that it is a lower grade. It is possible it is not real Turquoise. This necklace is Double knotted to keep each stone secure. It is most likely handmade. There is some Patina right on the Silver Tone clasp. I do not believe that this is Sterling Silver because I could not find a mark. In good vintage condition may show minor signs of wear due to normal use. Measures 18 inches. Shipped with USPS First Class Mail.