How much does saffron cost per kilogram?

How to get close to this number

Work from the labour. The explanation gives it: around a hundred and fifty thousand hand-picked flowers per kilogram, with the stigmas harvested in a few hours after the flower opens. Divide a kilogram price by that and the labour cost per flower is a fraction of a cent — the price is high because the quantity per flower is minute.

That harvest window is the binding constraint. A crop that must be picked by hand within hours of opening cannot be mechanised, cannot be scheduled flexibly, and requires a large workforce available on exactly the right days. Every one of those conditions pushes cost upward and none of them has a technological fix.

The result is the world's most expensive spice by a wide margin, priced per kilogram at the level of precious metals. Agricultural products reach that price point only when the usable fraction of the plant is tiny and the harvest cannot be automated — which is the same structure as vanilla and, historically, as the spice trade that redrew the world map.