Stunning Circa 1979 Persian Turquoise Ring from Iran. It is hallmarked and tested as 22k Gold, nearly pure. Fabulous Polished Persian Turquoise Cabachons. Size is appx 5. Weight is 4.9 dwt. Center Turquoise is 14mm x 9.6mm. Side Turquoises are 5.7mm x 4.1mm. Exotic hallmark inside that I cannot interpret. Comes from Iran in the 1970s. It is breathtaking. Can be sized w/o affecting mark.