This 1980's necklace has an outstanding Royston turquoise and faceted quartz pendant hanging from a 24" sterling chain, marked 925. The sterling pendant is 2" long which includes the large bail. The magnificent example of turquoise from the Royston mine in Nevada is truly beautiful and fairly large measuring 1 1/2" long. It has a rope frame of copper, and the bail is silver plated copper as well and shows a faint copper hue. The back of the pendant is marked 925 for sterling. The turquoise has a frame of prong-set rock crystal stones in a marquise shape which I have never seen before, and it is quite lovely and unusual.