Only one stigma per flower is ever produced, and this combined with the fact that saffron must be harvested at dawn before the pollen on the stigma has dried has made saffron the most expensive spice in the world. Currently, weight for weight, it is more expensive than gold. | Only one stigma per flower is ever produced, and this combined with the fact that saffron must be harvested at dawn before the pollen on the stigma has dried has made saffron the most expensive spice in the world. Currently, weight for weight, it is more expensive than gold. |