Saffron has long been the world's costliest spice by weight.Kashmiri saffron is a spice derived from the flower of Crocus sativus, commonly known as the "saffron crocus". The vivid crimson stigma and styles, called threads, are collected and dried for use mainly as a seasoning and colouring agent in food some of the health benefits of kashmiri Saffron are -   It gives glowing skin when mixed with milk Boosts memory It is also used in ayurvedic medicines