The fog test is one of the quickest ways to check for a fake diamond. Just breathe on the stone as if you’re fogging up a mirror. A real diamond will clear almost instantly because diamonds are ...

Determining the authenticity of a diamond requires professional equipment and a highly trained eye. At-home tests do exist—from the fog test to the water-drop test—but the only way to be sure is by ...

In a world full of dupes, it can be challenging to distinguish between a real diamond and a fake one. Jewellery expert ...

Two samples of carbon crystals, which are clear and give off a kaleidoscope of spectral colours under direct sunlight, may appear to be identical. However, one is a billion years old, and the other is ...

Nearly half of engagement ring center stones (46%) sold in 2023 were lab-grown, according to a survey by The Knot. 1 Buyers ...