Are there accurate ways to tell a natural diamond from an artificial diamond? Unlike natural diamonds, can?

Question

artificial diamonds be made without any flaws? When you pass lightbeams through natural and artificial diamonds, do lightbeams behave the same way?

Answer 1

Put it on top of a newspaper.  If you can see the print through the stone, then it's a fake.

Answer 2

you need a trained eye of a professional to be sure.

http://www.whitefirejewelry.com

Answer 3

An amature could not tell the difference. Most artificial diamonds will not scratch glass as easily as a natural diamond does.