Wahala Facts: 16 most expensive materials on earth

16. Saffron is a spice derived from the flower of Crocus sativus,
commonly known as the saffron crocus. Saffron prices at wholesale and
retail rates range from
US$500 to US$5,000 per pound, or
$1,100–11,000/kg, which is about $11/g. Saffron is widely used in Indian,
Arab,Persian ,Turkish and European cuisines.
Confectioneries and liquors also often include saffron.