Great sterling and Turquoise pendant. The metal is not hallmarked, but tested for sterling silver. The Turquoise appears to be untreated natural Turquoise. The pendant has a free-form shape. There is a strong hook in the back for a beaded chain. The pendant measures approx. 1 1/4" X 1" at the largest points. Weight is 10.9 grams. Condition is very good. Natural brown areas of the Turquoise stone. A lighter color blue near the center that is below the surface. Silver is very tarnished. I would date this great pendant at c1970's.