By 1999 U.S. leather imports totaled over $1.2 billion
In 1992 imported leather goods were valued at $631 million
Imports were $1 billion in 1996
A leather jacket was $99.99 & a pair of Levi's jeans were only $34.99.
Buffalo leather is very tough, almost 2X as much as cow, and is a nice color. That's why its so hard to kill buffalo. The native Americans used it to make vests etc.
I just bought mine this summer for $5000 with 186000 miles, EX-V6 with leather. That should really help you.
Pakistan import 95% of tea.
Australia doesnt import iron ore.
I personally produce or import no crude oil
Expensive leather shoes used from crocodile leather is about $70 to $120. Cheaper leather shoes are $50 to $80
Leather fabric can get damaged from too much moisture or too much heat. You can fix it by reversing the warping at the local dry cleaners or leather specialist.
Your answer depends on the quantity of diamonds you want to import, the country in Africa from which you want to import the stones, the country into which you want to import the stones and the duty regulations involved.
It doesn't import as much as it exports seeing its rich soil allows them to produce lots of foods for themselves. They export more than they import.