three things i would change

De Beers

De Bree's makes sure that they are not to many diamonds out in the market because they buy off all the diamonds and they only sell a few. De Bree's want us to think that diamonds are worth a lot they only give out a few diamonds to the people. they keep all the diamonds to them self's and don't give out a lot that is why they can charge what ever they want to charge anything for one diamond.