Blue diamonds: these two words juxtaposed in just this way sound exotic and mysterious. Why are they blue? Even scientists don't know the answer and are still in the experimental stages of trying to find out. You, too, can run a private little experiment at home. But first you need to buy a blue diamond. Fortunately, they are available for purchase online.
Some diamonds are considered to be valuable precisely because they have been cursed. This is so much the case, that a curse often has to be invented in order to sell a diamond. The Hope Diamond is said to carry such a curse, and since its current owner is the United States government, this could explain much about America's current economic climate.