Can I mail money with the same method I mail letters and bills?

Question

Or do I have to go to the post office and mail it?

I'm only mailing within the U.S.

Answer 1

You can mail it the same ol' way.

Is it cash or check?

If it's cash, I highly recommend NOT mailing it. Go to a local convenience store and make it a money order. It's just not a good idea to mail a wad of bills. Envelopes have no security system...

If it's a check or money order - you will be fine.

Answer 2

You can mail diamonds in the regular mail if you want to, but there is always the risk of it getting lost or stolen, that why mailing loney is not a good idea.