For me it has to be De Beers. Through fantastic marketing they have convinced every woman in the western world that a man needs to buy you a diamond to show he loves you.

They hold such a tight hold on the mining of diamonds people at the bottom are left in poverty, while De Beers themselves hold huge stocks in reserve to restrict supply of larger stones, so increasing the price.

Straight fact: I will never buy a De Beers diamond. If I am to buy a diamond I will need proof of it origin first!

Cheers

Cris.