Is Moissanite a Lab Grown Diamond?

September 8, 2025

A lot of shoppers looking for engagement rings or fine jewelry find themselves asking the same thing: is moissanite a lab grown diamond? The quick and clear answer is no, it isn’t. While both gemstones are created in laboratories and can appear very similar to the untrained eye, their composition, value, and meaning are completely different.

Moissanite is made of silicon carbide, while lab-grown diamonds are made of pure carbon, exactly like mined diamonds. Both are beautiful, durable, and affordable compared to traditional mined stones, but they play very different roles in the jewelry world.

In this guide, we’ll dive deep into what makes moissanite unique, what separates lab-grown diamonds from mined ones, the key differences between the two, and how to choose the perfect stone for your lifestyle and love story. By the end, you’ll never have to wonder again: is moissanite a lab grown diamond?

What Is Moissanite?

Moissanite has one of the most fascinating backstories in the jewelry world. In 1893, French chemist Henri Moissan discovered microscopic crystals in a meteor crater in Arizona. At first, he thought he had found diamonds, but later testing revealed they were a completely different mineral, silicon carbide.

Since natural moissanite is almost nonexistent on Earth, all the moissanite you see in jewelry today is lab-created. This makes it sustainable and widely available, but also distinct from diamonds.

Key things to know about moissanite:

It’s made of silicon carbide, not carbon like diamonds.
On the Mohs hardness scale, it ranks 9.25, making it very durable, though still slightly softer than diamonds at 10.
Moissanite is known for its rainbow sparkle, also called “fire.” Some people love this colorful brilliance, while others prefer the classic white sparkle of diamonds.
It’s significantly more affordable than diamonds, both mined and lab-grown.

So, when someone asks is moissanite a lab grown diamond, it’s important to note that moissanite is a diamond alternative, not a diamond itself.

What Are Lab Grown Diamonds?

Now let’s look at the other half of the question: is moissanite a lab grown diamond? To answer properly, we need to define what a lab-grown diamond actually is.

A lab-grown diamond is a real diamond, identical in every way to a mined diamond. The only difference is its origin. Instead of being formed deep underground over billions of years, lab-grown diamonds are produced in controlled laboratory environments using advanced technology.

There are two main methods:

HPHT (High Pressure High Temperature): This method replicates the natural conditions under which diamonds form beneath the Earth.
CVD (Chemical Vapor Deposition): A newer method where carbon gases are broken down and deposited onto a substrate, growing diamond crystals layer by layer.

Why lab-grown diamonds matter:

They are chemically and physically identical to mined diamonds.
They are more affordable, usually 30–40% less expensive than mined stones of the same quality.
They are ethical and sustainable, avoiding the environmental and social issues tied to traditional diamond mining.
They come with certifications from organizations like IGI or GIA, ensuring transparency in quality.

So, if you’re wondering is moissanite a lab grown diamond, the answer is clearly no, because lab-grown diamonds are the real deal, while moissanite is a different gemstone altogether.

Moissanite vs. Lab Grown Diamond: Key Differences

To help clear up the confusion around is moissanite a lab grown diamond, let’s look at the differences in more detail:

Composition and Origin
- Moissanite: Made of silicon carbide, discovered in a meteor crater but now lab-created.
- Lab-Grown Diamond: Made of pure carbon, grown in labs using HPHT or CVD methods.
Hardness and Durability
- Moissanite: 9.25 on the Mohs scale, very tough, suitable for everyday wear.
- Lab-Grown Diamond: 10 on the Mohs scale, the hardest known material on Earth.
Brilliance and Fire
- Moissanite: Known for rainbow flashes, sometimes too colorful for those who want a classic diamond look.
- Lab-Grown Diamond: Produces the same white brilliance and sparkle as mined diamonds.
Color and Clarity
- Moissanite: Some stones show slight gray or yellow undertones.
- Lab-Grown Diamond: Can be colorless or available in fancy colors, graded just like mined diamonds.
Price
- Moissanite: Very budget-friendly, significantly cheaper than lab-grown diamonds.
- Lab-Grown Diamond: More affordable than mined diamonds but still priced as real diamonds.
Resale Value
- Moissanite: Limited resale or trade-in value.
- Lab-Grown Diamond: Holds value better, recognized in the jewelry market.
Tradition and Symbolism
- Moissanite: Seen as a diamond alternative, less traditional.
- Lab-Grown Diamond: Carries the same symbolism as natural diamonds, eternal love and commitment.

When comparing the two, the phrase is moissanite a lab grown diamond makes sense because they share some similarities, but the distinctions prove they are not the same gemstone.

Which Should You Choose?

The decision depends on your personal priorities.

Choose Moissanite if:
- You’re looking for a budget-friendly stone.
- You love the fiery rainbow sparkle.
- You don’t mind that it isn’t a real diamond.
Choose Lab-Grown Diamond if:
- You want an authentic diamond without the mined price tag.
- You care about tradition, symbolism, and long-term value.
- You want a gem that can become a family heirloom.

So, if you’re asking yourself again is moissanite a lab grown diamond, the choice boils down to how much importance you place on authenticity versus affordability.

Common Misconceptions About Moissanite & Lab Diamonds

Because moissanite and lab-grown diamonds look similar, people often get mixed up. Here are some common myths:

Myth 1: Moissanite is a diamond.
Truth: Moissanite is a completely different mineral.
Myth 2: Lab-grown diamonds are fake.
Truth: Lab-grown diamonds are chemically identical to mined diamonds.
Myth 3: Moissanite is stronger than diamonds.
Truth: Diamonds are still the hardest natural material at a 10 on the Mohs scale.
Myth 4: Lab-grown diamonds don’t last.
Truth: They are just as durable and timeless as mined diamonds.

These myths are exactly why people often ask is moissanite a lab grown diamond.

Why Lab Grown Diamonds Make a Timeless Choice

If you’re after a stone that will last a lifetime and carry traditional meaning, lab-grown diamonds are the way to go.

They are ethical and sustainable, with no ties to conflict or destructive mining.
They offer affordable luxury, making larger or higher-quality stones accessible.
They provide the same brilliance, hardness, and sparkle as mined diamonds.
They come with certifications, proving authenticity and quality.

So, when choosing between the two, remember: is moissanite a lab grown diamond? No. But lab-grown diamonds remain the timeless option if you want the full diamond experience.

Conclusion

So, is moissanite a lab grown diamond? The answer is clear: no. Moissanite and lab-grown diamonds may look alike, but they are different stones with different origins, compositions, and values.

Moissanite gives you affordable sparkle and durability.
Lab-grown diamonds give you authenticity, tradition, and timeless appeal.

When celebrating love, tradition, and commitment, lab-grown diamonds stand out as the perfect balance of beauty, ethics, and long-term value.

At Jewelove, every engagement ring and platinum band is designed to last for generations. Whether you choose a lab-grown diamond engagement ring or a classic platinum wedding band, our certified Pt 950 platinum jewelry combines elegance, ethics, and everlasting love.

Explore the Jewelove Lab Grown Diamond Engagement Rings Collection today and celebrate your forever with platinum.

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Frequently Asked Questions

Q1. Is moissanite a lab grown diamond?

Ans: No, moissanite is not a lab grown diamond. Moissanite is made of silicon carbide, while lab-grown diamonds are made of pure carbon, just like mined diamonds.

Q2. Do lab-grown diamonds test as real diamonds?

Ans: Yes. Because they are chemically identical to mined diamonds, they pass standard diamond testers.

Q3. Does moissanite look like a diamond?

Ans: Yes, moissanite can look very similar to a diamond at first glance, but it usually has rainbow flashes that give away its identity.

Q4. Is moissanite cheaper than lab-grown diamonds?

Ans: Yes, moissanite is significantly less expensive, often costing a fraction of the price of a comparable lab-grown diamond.

Q5. Can moissanite scratch easily?

Ans: Moissanite is very durable at 9.25 on the Mohs scale, making it suitable for daily wear. However, diamonds are harder and more scratch-resistant.

Q6. Do lab-grown diamonds have resale value?

Ans: Yes, lab-grown diamonds are recognized as real diamonds and generally hold stronger resale value than moissanite, though usually less than mined diamonds.

Q7. Which is better for an engagement ring: moissanite or lab-grown diamond?

Ans: It depends. Moissanite is perfect for budget-conscious buyers, while lab-grown diamonds are ideal for those who want authenticity, symbolism, and heirloom potential.

Q8. Is it wrong to buy moissanite instead of a diamond?

Ans: Not at all. It’s a personal choice. Some people love moissanite’s fiery sparkle, while others prefer the timeless beauty of lab-grown diamonds.