Kashmiri and Iranian saffron comparison Kashmiri and Iranian saffron comparison: The main difference between Kashmiri and Iranian Saffron is the yield of stigmas, which is about 75%.The excess yield is because the stigmas of saffron cultivated in Kashmir are extremely long and have a thick head. They are also of a deep red color. The size of the stigmas indicates the inherent suitability of the soil and climate for this...