Square Number Eight Turquoise Ring Size 5.25Number 8 Turquoise mine is located in the Lynn mining district in Eureka County Nevada and is no longer mined. This sweet stone is set in . 999 fine silver soldered on to thick sterling silver sheet. I created a floral band using a vintage die pressing thick sterling silver into the impression. It measures a smidge over a size 5 to 5. 25. The face of the setting measures . 50 inch.