Rooted in expertise: Every guide we publish is carefully researched and reviewed by our certified jewelers alongside our editorial and content teams, ensuring a standard of excellence and accuracy.

 

If you’ve ever found yourself confused by terms like simulated diamonds, lab-grown diamonds, and real diamonds, you’re not alone.

In fact, as the jewelry industry evolves, so does the language around it. More options, more accessibility, more innovation… but also more confusion.

So let’s clear a few things up.

Because the truth is: not every diamond-looking stone is the same.
Some are diamonds, some are not, and the difference matters (depending on what you’re looking for of course).

Let’s take a closer look.

 

Quick Answer: What’s the Difference?

• Natural diamonds are formed in the earth over billions of years.

• Lab-grown diamonds are real diamonds, created in a controlled environment.

• Simulated diamonds (like cubic zirconia or moissanite) are not diamonds, they’re materials grown and designed to look like them.

They may all look similar at a glance, but the simulated stones will behave, perform, and wear very differently over time.

According to the Gemological Institute of America (GIA), lab-grown diamonds share the same chemical, physical, and optical properties as natural diamonds, making them true diamonds in every sense (aside from origin).

 

What Is a Simulated Diamond?

A simulated diamond (also called a diamond simulant) is a stone that is made to imitate the look of a diamond but does not share its chemical or physical structure.

The most common examples:

• Cubic Zirconia (CZ)

• Moissanite

These stones are chosen for their brilliance and affordability, and when high quality, well-cut and properly set stones are used, they can create a shockingly convincing look.

But here’s what most people don’t realize:

“Looks like a diamond” is not the same as “is a diamond.”

Simulated diamonds are made from entirely different materials, which means:

• They reflect light differently

• They wear differently over time

• And they don’t have the same internal structure as a diamond

That doesn’t make them “bad.” It simply means they serve a different purpose. If you’re curious about how to spot these subtle differences in real life, we break it down in more detail in our guide on how to tell if jewelry looks real.

 

What Is a Lab-Grown Diamond?

A lab-grown diamond is a diamond.

It has:

• The same carbon crystal structure

• The same hardness

• The same brilliance

The only difference is origin:
Instead of forming underground over billions of years, it’s created in a laboratory using advanced technology.

Visually?
Even trained professionals require specialized equipment to distinguish a lab-grown diamond from a natural one.

So if you’ve ever wondered:
“Are lab-grown diamonds real?”
The answer is yes.

And when it comes to how these stones are set and finished, craftsmanship matters just as much as the material itself, something we take pride in through our handcrafted in the USA approach.

 

Simulated vs Lab-Grown vs Natural Diamonds

Here’s where clarity matters most:

Not all sparkle is created equally.

While natural and lab-grown diamonds share the same foundation, simulated stones offer a different kind of beauty, one that prioritizes scale, style, and accessibility.

For a deeper understanding of how materials impact both look and longevity, you can also explore our comparison of gold vermeil vs solid gold.

 

What Jewelers Don’t Always Say (But You Should Know)

Let’s talk about the part that often gets glossed over.

Not all marketing language is created equally.

Terms like:

• “Lab-created”

• “Diamond alternative”

• “Simulated”

• “Diamond-like”

…can sometimes blur together in ways that feel intentionally confusing.

That’s why transparency matters.

Because a lab-grown diamond and a simulated diamond are not interchangeable - and they shouldn’t be presented as such.

In fact, the Federal Trade Commission (FTC) requires that jewelry be clearly and accurately described so consumers are not misled about what they are purchasing.

The most important question isn’t:
“What’s better?”

It’s:
“What are you actually buying - and does it match what you want?”

 

Can You Actually Tell the Difference? Let’s Look Closer.

This is where things get interesting.

To the naked eye

• Lab-grown vs natural diamonds: nearly impossible to distinguish

• Simulated diamonds vs diamonds: sometimes subtle, sometimes noticeable (quality dependent)

With a loupe (magnification)

A loupe can reveal clues, but it’s not a perfect test.

Here’s what you might notice:

• Moissanite:
  May show double refraction (a slight doubling of facets) and more rainbow-like flashes

• Cubic Zirconia:
  Often appears very clear, sometimes “glassy,” with softer brilliance

• Diamonds (natural or lab-grown):
  Typically show sharper, more balanced brilliance and subtle internal characteristics

But here’s the truth:
Even trained professionals rely on advanced tools to definitively distinguish between natural and lab-grown diamonds, as standard visual inspection is often not enough, something extensively documented in gemological research by GIA.

A loupe can hint… but it doesn’t confirm.

 

Why Some Stones Sparkle Differently

Not all sparkle is the same.

• Diamonds → Balanced brilliance (white light reflection)

• Moissanite → More colorful fire (rainbow flashes)

• CZ → Softer brilliance, sometimes less dynamic over time

This is why some stones feel:

• “crisp and sharp”

• while others feel “flashy” or “glassy”

It’s not about better or worse - it’s about how the light performs. And beyond the stone itself, design plays a major role in how luxurious a piece appears, which we explore further in what makes a ring look expensive.

 

Which Option Is Right for You?

This is where your lifestyle comes in.

If you want…

A forever piece with maximum durability:
→ Natural or lab-grown diamond

A larger look at a more accessible price:
→ Lab-grown or simulated (depending on priorities)

More freedom with what you wear while traveling:
→ Simulated stones are often chosen by women who prefer not to travel with especially valuable or sentimental originals. Explore why even women with extensive fine-jewelry collections choose travel jewelry.

Statement pieces that feel bold and glamorous:
→ Simulated stones can offer scale and presence

There is no single “right” answer.
Only the one that aligns with how you live, travel, and wear your jewelry. And regardless of the material you choose, investing in pieces designed with intention and backed by lifetime quality ensures they remain part of your collection for years to come..

 

The Rise of Smarter Luxury

Today’s customer is more informed, and their purchases are more intentional.

She’s not just asking:
“Is this real?”

She’s asking:

• Will it look believable?

• Will it last?

• Does it fit my lifestyle?

• Does it feel worth it?

And that shift is changing the industry.

Because luxury isn’t just about origin anymore.

It’s about confidence, craftsmanship, and how a piece makes you feel when you wear it.

 

Final Thoughts

The world of diamonds is no longer one-dimensional.

You now have:

• Natural diamonds

• Lab-grown diamonds

• Simulated diamonds

Each with its own place, purpose, and perspective.

The key isn’t choosing what’s “better.”
It’s choosing what’s right for YOU.

Because the best jewelry doesn’t just sparkle.

It feels intentional.
It feels believable.
And most importantly… it feels like you.

 

FAQ: Simulated vs Lab-Grown Diamonds

Are simulated diamonds real?
No. They are not diamonds, they are materials designed to resemble a natural diamond visually.

Are lab-grown diamonds real diamonds?
Yes. They have the same structure and properties as natural diamonds.

Can you tell the difference between lab-grown and natural diamonds?
Not reliably without specialized equipment.

Do simulated diamonds look fake?
Not necessarily. High-quality simulated stones can look almost identical to the naked eye, especially when well-cut and well-set.

Which is better: lab-grown or simulated?
It depends on your priorities - durability, price, size, and intended use.

 

Let’s Continue the Conversation

Can you actually tell the difference?

Have you ever been surprised by a piece you thought was “real”? Or chosen something intentionally for travel, style or practicality?

If travel is part of the equation, you may also enjoy our look at why women who own exceptional diamonds sometimes choose to leave them at home.

We’d love to hear your thoughts. 

 

Want to learn more?

Further Reading:

• Gemological Institute of America (GIA): Diamond & Simulant Guide

• Federal Trade Commission (FTC): Jewelry Guidelines