Pricey Substances That Are Even More Expensive Than Gold (18 pics)
You probably knew that these substances were you expensive, but you probably never knew they were this expensive.
Saffron: £10 per gram
The most expensive spice in the world, saffron costs between £5 and £10 per gram at the supermarket.
The spice is so dear because the process is labour intensive. Each flower produces just a few stigmas, which need to be hand-picked and dried before used with food. It can take around 150 flowers to produce a gram of saffron.