Negin: this is the highest quality grade for saffron threads. In terms of thread’s length, it is almost equal to Pushal, yet with the colour intensity of Sargol. Negin saffron is usually wider on the tip part.
Sargol (Momtaz): this type is completely red without the orange or white tips. As Sargol saffron goes through further sorting process, it sometimes contains smaller shreds of broken stigmas.
Pushal: this type has longer threads that are orange or sometimes white on the end side.