There are few things more beautiful in this world than a brilliant diamond. But diamonds are extremely valuable and expensive, and sometimes people try to pass off a fake as the real thing. There are ...

There are lots of ways to test whether a diamond is real. You can scratch it, heat it up, or look at it through a microscope. But can you tell whether a diamond is real at just a quick glance? We ...

In the past, one of the most common techniques to test if a diamond was real or synthetic was to scratch the gem against glass — if the glass is scraped or scratched, the diamond's real. But this ...