- 100% Natural - 100% Hand-Picked - No Artificial Color - Additive Free Negin saffron is a longer and thicker kind of saffron. It is pure and contains stigma without the style. It has no style & pollen and just consists of red parts of stigma with strong color and aroma. If three stigma threads are attached together and form a cluster, this type of saffron is called Negin. Since the production of Negin saffron is an extremely delicate and precise manual skill, it is the most expensive type of saffron and very limited to offer. The ISO reading of Negin is usually more than 270.