Turquoise & sterling silver dome ring

This is a gorgeous heavy set turquoise and sterling silver semi circular / dome ring. The turquoise is treated and stabilized. There is a tiny nick in one edge of the semi circle barely visible to the naked eye (please see all the pictures). The ring is stamped 925 for sterling silver on top of its mount. It is a size 6.75 to 7.0 and in great vintage condition.