Here is a classic spiderweb stone from Nevada Blue! This is a nice oval shape too! Cut in the 1970s by Herb and Dottie Lindner.
26x18mm, 4mm dome
Nevada Blue Mine Natural Turquoise Cabochon
This stone is backed for added strength and ease of setting. The turquoise itself is natural, but may have a some surface filling. Vintage cut in the 1970's and 80's.