Let’s talk sparkle—because at the end of the day, that’s what makes a diamond mesmerizing. You’ve probably heard people say, “Lab diamonds look the same as natural diamonds!” But do they really shine with the same brilliance and fire?

What Even Is Brilliance and Fire?

Before we dive in, let’s get our terminology straight.

 • Brilliance: The way a diamond reflects white light (aka, that bright, flashy sparkle).

• Fire: The rainbow-like light dispersion when a diamond catches the sun.

Lab Diamonds vs. Natural Diamonds: A Sparkle Showdown

Both lab-grown and natural diamonds have the same chemical composition—pure carbon arranged in a crystal structure. So technically, they should sparkle the same, right? Well, mostly! 

• If both are cut to the same standard, they’ll reflect light the same way.

• However, some lab diamonds can have a slightly different crystal growth pattern, which may affect how they handle light. 

• That said, to the naked eye? You won’t see a difference. A well-cut lab diamond will blind you with brilliance just like a natural one!

So, What’s the Verdict?

Lab diamonds don’t just look like natural diamonds—they shine just as brightly! Unless you’ve got a microscope and a gemology degree, you won’t be able to tell the difference.