Turquoise, 8mm round bead, extra-long necklace, with a modern spring ring clasp.
 
The stone is ancient, of course, but this necklace has been restrung and knotted by hand, and a modern spring ring clasp added, so it's totally secure.
 
Total length is 137cm, sometimes called Opera Length, and in the Art Deco era it was known as a Flapper Necklace, because all the fashionable young things of the time loved wearing extra-long beaded necklaces.
 
The price includes postage to anywhere in Australia.