How to Spot Fake Diamonds vs Moissanite

|Corentin Lacaze
How to Spot Fake Diamonds vs Moissanite

Diamonds, moissanite, fake stones…

At first glance, they can all look similar.

But in reality, they’re completely different.

If you don’t know what to look for, it’s easy to get fooled — and end up overpaying for something that isn’t worth it.

Here’s how to tell the difference.


 1. Understanding the Basics

Before spotting the differences, let’s clarify:

  • Natural diamonds → mined, expensive, traditional

  • Moissanite → lab-created, high brilliance, modern alternative

  • Fake stones (CZ, glass) → low quality, cheap materials

The key difference?

Quality, shine, and durability


 2. The Sparkle Test

This is the easiest way to tell.

 Diamonds:

  • White sparkle (subtle brilliance)

  • Less “rainbow” effect

Moissanite:

  • Brighter sparkle

  • More fire (rainbow reflections)

  • More eye-catching

Fake stones:

  • Often too dull OR overly “flat”

  • No depth in the shine

 If it shines a lot and catches light strongly → likely moissanite


3. The Clarity & Detail Check

Look closely at the stone.

Diamonds & Moissanite:

  • Sharp edges

  • Clean cuts

  • High clarity

Fake stones:

  • Rounded edges

  • Small imperfections

  • Less precise cutting

Cheap stones lose that crisp, premium look


 4. The Fog Test

A quick trick you can try:

 Breathe on the stone

  • Diamond & Moissanite → clears instantly

  • Fake stones → stays foggy longer

Why?

Because high-quality stones disperse heat quickly.


5. Light Reflection Under Different Angles

Move the jewellery under light.

Moissanite:

Extremely reactive

Sparkles even in low light

Diamond:

More subtle shine

Fake:

 Looks lifeless unless under strong light


 6. Diamond Tester (Important Truth)

Most people rely on testers.

But here’s the truth:

  • Diamonds = pass

  • Moissanite = ALSO passes

That’s because both conduct heat similarly.

So a tester cannot reliably tell the difference


7. The Price Reality Check

This is the biggest clue.

If someone offers you:

  • a “diamond” at a very low price

It’s either:

  • fake

  • or not what they claim

Moissanite, on the other hand:

  • gives you a premium look

  • at a much smarter price


The Truth Most People Don’t Know

Here’s what’s interesting:

Most people can’t visually tell the difference between a diamond and moissanite.

But they can tell when something looks cheap.

That’s why:

  • fake stones fail

  • moissanite stands out


So… Which One Should You Choose?

If you want:

  • maximum shine

  • premium look

  • better value

 Moissanite is the smarter choice.

You’re not paying for hype —

you’re paying for actual visual impact.


Final Thoughts

Spotting fake jewellery isn’t about being an expert.

It’s about knowing what matters:

  • shine

  • quality

  • craftsmanship

Once you understand that…

you’ll never get fooled again.


Discover Real Brilliance

If you want jewellery that actually looks premium:

Explore our moissanite pieces and see the difference for yourself.