If you've been shopping for a colored diamond and stumbled across "lab-grown" options at a fraction of natural prices, you've probably asked yourself: are these even real diamonds?

The short answer is yes — completely real. But there's a lot more to the story, especially when it comes to color. Let's break it all down.

What Exactly Is a Lab-Grown Diamond?

A lab-grown diamond (also called a lab-created or synthetic diamond) is a diamond grown in a controlled laboratory environment rather than mined from the earth.

Scientists replicate the extreme heat and pressure conditions found deep in the Earth's crust, producing crystals that are chemically, physically, and optically identical to mined diamonds.

Two main methods are used:

HPHT (High Pressure High Temperature) — mimics the natural formation process
CVD (Chemical Vapor Deposition) — builds the diamond layer by layer from carbon-rich gas

The result? Pure carbon in a cubic crystal structure — the same atomic arrangement as any diamond pulled from the ground.

Are Colored Lab Diamonds Real Diamonds?

Yes. A lab-grown colored diamond is still 100% diamond — same hardness (10 on the Mohs scale), same refractive index, same brilliance.

The color comes from trace elements or structural anomalies introduced during growth, exactly how it happens naturally:

Color	Cause
Yellow / Orange	Nitrogen atoms
Blue	Boron atoms
Pink / Red	Structural lattice distortion
Green	Radiation exposure post-growth

Fancy colored diamonds are among the rarest stones in nature — a vivid pink or blue mined diamond can sell for millions per carat. Lab-grown colored diamonds replicate that beauty at a price that's actually accessible.

How Are They Different From Color-Treated Diamonds?

This is a crucial distinction — and one worth understanding before you buy.

Lab-grown colored diamonds are grown with color from the start (or receive color through a process that permanently alters atomic structure). The color is intrinsic.

Color-treated diamonds are natural or lab-grown stones that have been irradiated, coated, or HPHT-processed after the fact to alter surface color. Some of these treatments are permanent; others can fade or chip off.

Vintage Inspired Kite Cut Lab Pink Diamond Milgrain Engagement Ring Set 2pcs

Always ask: "Is this a naturally colored lab diamond, or has the color been added through post-growth treatment?" Reputable sellers will tell you.

Lab Colored Diamonds vs. Natural Colored Diamonds
Feature	Lab Colored Diamond	Natural Colored Diamond
Chemical composition	Identical	Identical
Hardness	10 / Mohs	10 / Mohs
Brilliance	Same	Same
Rarity	Not rare	Extremely rare
Price	80–95% less	Very high to astronomical
Ethical sourcing	Yes	Varies
Certifiable	Yes (IGI, GIA)	Yes

The only meaningful differences are origin and price. No gemologist can distinguish them with the naked eye — even most lab equipment can't without specialized testing.

Popular Colors in Lab Diamonds — And What They Look Like

💛 Yellow & Fancy Yellow

The most common lab colored diamond. Vivid canary yellows rival the best natural yellows. Perfect for statement pieces.

💙 Blue

Boron-infused lab blues are strikingly similar to the legendary Hope Diamond. A deep, inky blue is achievable at a fraction of natural cost.

🩷 Pink & Rose

Once nature's rarest — vivid pinks like the Argyle collection were truly once-in-a-generation. Lab grown opens that door to everyday fine jewelry.

💚 Green

Rare even in lab form. A vivid green diamond has a striking presence unlike any other gemstone.

Do They Come with Certificates?

Yes — and they should. Look for grading reports from:

IGI (International Gemological Institute) — the most common for lab diamonds
GIA (Gemological Institute of America) — also grades lab diamonds now
GCAL — growing in adoption

A certificate will specify: carat, cut, color grade, clarity, and importantly — "Laboratory Grown" clearly stated.

Are They Worth Buying?

That depends on what you value.

Lab colored diamonds make sense if you:

Want a vivid, rare color at an accessible price
Prioritize ethical, conflict-free sourcing
Care more about the look than the "story" of the stone
Want more stone for your budget

Natural colored diamonds might be for you if:

You value the geological story and provenance
You're buying as an investment
Rarity and exclusivity matter to you

There's no wrong answer — both are real diamonds. The decision comes down to personal values.

Are Lab Grown Diamonds a Good Investment?

Honest answer: not in the traditional sense. Lab diamond prices have dropped significantly as production has scaled.

If resale value matters to you, natural diamonds — especially natural colored ones — hold value far better.

But if you're buying for the joy of wearing it, lab colored diamonds offer remarkable value. You're paying for beauty, not rarity.

How to Shop for Lab Colored Diamonds

A few things to check:

Ask for the certificate — IGI or GIA, always
Confirm the color is "as-grown" vs. post-growth treated
Check the color grade — Fancy, Fancy Intense, Fancy Vivid are distinct tiers
Look at the cut — colored diamonds are often cut to maximize color, not ideal brilliance parameters

Lab-grown colored diamonds are real diamonds — full stop. The carbon atoms don't know whether they formed under a mountain in South Africa or inside a reactor in Singapore. The beauty is the same. The hardness is the same. The sparkle is the same.

What's different is the price, the accessibility, and the fact that you didn't have to spend a small fortune to own a vivid pink or electric blue stone.

If you've ever wanted a colored diamond but thought they were out of reach, lab-grown might just change your mind.

Explore our collection of lab-grown colored diamond jewelry — ethically grown, brilliantly made.