The simplest way to tell if a pearl is natural or fake is to take the pearl and rub it against your teeth. “If the surface of the pearl feels grainy, then it is real,” explains Whitten.

How to tell if pearls, diamonds, and gemstones are real Now that you’ve checked the metal, it’s time to see whether the pearls, diamonds, and/or gemstones on a piece of jewelry are real. The ...