This is a gorgeous 925 Silver Double Terminated Natural Quartz Crystal Ring from Taxco Mexico Taxco Mexico.
I got it on a recent trip there.
Taxco is famous for it's artisans. It became a silver mining town when large loads were found in the 1500's and is now a producer of some of the finest quality silver jewelry.
Ring Size: 6.75 US Adjustable ( can adjust up or down half a size )
Stone Face Size: .8" long and .25" wide ( 2.2 cm long and .7 cm wide )
Weight: .22 oz ( 9.6 gm )