What are the most useless inventions you see around you?

Before the girls hang my hide to dry, I’ll explain.

We like shiny stones. We use shiny stones to decorate our beloved (or like to be beloved). But these stones are not too rare, neither too exemplary to pay the exorbitant prices we pay for them.

Their value comes only from clever advertising. Without the cult of giving diamonds to our women, their prices would be much-much lower.

We can make them artificially. We can use them in drills and saws. We even use them to create protective coating. But they are not good to anything other.

The overpriced natural versions are not good for anything except showing off, but without professional examination, no man can tell this:

or this

Is diamond. One of the four picture is made from glass.

IF you do not take them to specialist, nobody will know you got glass or diamond.