Early Zuni Petit Point Turquoise Rosette SINGLE Earring Sterling Silver

Early Zuni petit point turquoise single pierced post earring in sterling silver. It was once a screw back style and was converted to pierced. Turquoise is natural and has lovely color variations due to changing color with age and exposure. Nice rustic patina. Measures 1 1/8" by 7/8". Would make a lovely ring. No hallmarks. C. 1960.