I was just reading an old thread where CutNut gave some tips for testing diamonds (breathing on them, touching w/lip or tongue). With so many fakes out there now, what is the best way to tell? Chemically, electronically,...?
When you take a diamond to have it appraised, is part of the appraisal determining whether or not it's a real diamond? I've always been paranoid about paying for a diamond but getting a cubic zirc. I doubt I could tell the difference.