Lab Grown Diamonds vs Mined Diamonds: The Complete Canadian Buyer's Guide (2026)

If you're shopping for a diamond right now, you've probably already asked yourself the question — is a lab grown diamond actually worth it? Or is there something about a mined diamond that justifies the price difference?

It's a fair question. And honestly, the answer might surprise you.

What's the Actual Difference?

Let's get the most important thing out of the way first. Lab grown diamonds are real diamonds. Not diamond simulants. Not cubic zirconia. Not moissanite. Real diamonds — with the same chemical composition, the same crystal structure, and the same physical properties as anything pulled out of the ground.

The only difference is where they come from.

A mined diamond forms naturally underground over billions of years under extreme heat and pressure. A lab grown diamond replicates that exact process — just above ground, in a controlled environment, in a matter of weeks. The end result is chemically and optically identical.

Even the world's top gemological labs — IGI and GIA — grade them using the exact same standards.

How Are Lab-Grown Diamonds Made?

A lab-grown diamond starts with a tiny slice of diamond, called a seed. Over several weeks, new carbon atoms bond to that seed in exactly the same crystal structure a mined diamond forms deep underground. There are two main methods.

CVD (chemical vapour deposition). The seed is placed in a sealed chamber filled with carbon-rich gas. Microwave energy turns the gas into plasma, and carbon settles onto the seed layer by layer, growing the diamond upward.

HPHT (high pressure, high temperature). This method recreates the conditions inside the earth. The seed sits in pure carbon under extreme pressure and temperatures of roughly 1,400 to 1,600°C, and the carbon crystallizes around it.

Both methods produce real diamonds, not simulants. Once grown, each stone is cut and polished by hand and graded on the same Four Cs as any mined diamond. Every PURE® lab diamond we set is independently certified by IGI and laser-inscribed with its report number.

The Price Gap Is Real — And It's Significant

This is where things get interesting. A 1 carat round lab grown diamond graded D to F colour, VS1 to VVS clarity and ideal cut, the kind of stone you'll find in Quorri's PURE® collection, is $999 to $1,299 CAD.

The same stone, mined from the earth? You're looking at $10,000 to $19,000 CAD, and sometimes more. See every size compared in our lab vs mined diamond price chart.

That's not a small difference. That's the difference between a 1-carat stone and a 2-carat stone. Between a simple solitaire and a custom halo setting. Between stretching your budget thin and having something left over.

Lab grown diamonds didn't get cheaper because the quality dropped. They got cheaper because the supply chain is fundamentally different — no mining operations, no middlemen, no decades-long distribution networks built into the price.

Are They Certified the Same Way?

Yes — and this matters more than most people realize.

Every Quorri PURE® lab grown diamond comes with a full IGI grading report. That's the same independent third-party certification used for mined diamonds globally. The report documents the stone's cut, colour, clarity, carat weight, measurements, symmetry, polish, and fluorescence.

You're not taking anyone's word for it. You have a document.

GIA certification is also available on request if that's your preference.

Can Anyone Tell the Difference?

No — and we mean that literally.

Even the most experienced gemologist in the world cannot look at a lab grown diamond and a mined diamond side by side and tell them apart. The stones are identical to the naked eye. Identical under a jeweller's loupe. Identical under standard gemological equipment.

Specialized laboratory equipment — the kind only major research institutions have — can detect differences in growth patterns under UV light. But your jeweller can't. Your friends can't. You won't be able to either.

What About Ethics and the Environment?

This one matters to a lot of buyers — and it should.

Traditional diamond mining has a complicated history. Conflict diamonds, exploitative labour practices, and significant environmental damage from large-scale excavation are all part of that story. The industry has made progress, but the concerns haven't disappeared entirely.

Lab grown diamonds sidestep all of it. No mining. No excavation. No conflict zones. Every Quorri PURE® diamond is 100% conflict-free — not because we say so, but because of how they're made.

The environmental footprint is significantly lower too. Lab grown diamonds can be produced using renewable energy sources, with no land disruption and no toxic mine tailings left behind.

If that matters to you — and for a lot of Canadian buyers it does — lab grown is an easy call.

The "Resale Value" Question

You'll hear people say mined diamonds hold their value better. It's worth addressing honestly.

The truth is that neither lab grown nor mined diamonds are great investments in the traditional sense. Both have seen price fluctuations in recent years. Both have secondary markets with varying demand.

Where lab grown diamonds win is at the point of purchase. You're getting significantly more stone for your money upfront — better quality, larger carat, higher grade — than you'd ever get spending the same amount on a mined diamond.

Think of it less like buying an asset and more like buying something beautiful that you'll wear every day. On that measure, lab grown wins easily.

So Which Should You Choose?

If you want a stunning, certified, conflict-free diamond at a price that makes sense — lab grown is the clear answer for most buyers in 2026.

If you have a specific emotional attachment to the idea of a naturally mined stone and the price difference doesn't concern you — mined diamonds are still beautiful, and that's a completely valid choice too.

But if you're weighing quality, value, ethics, and certification side by side? The case for lab grown has never been stronger.

Why Quorri PURE®?

Not all lab grown diamonds are the same. Quorri PURE® diamonds are hand-selected from the top 5% of available stones — D–F colour, VS1–VVS clarity, Ideal cut, IGI certified. Every single one.

We don't list thousands of algorithmically filtered stones and leave you to figure it out. Our team personally evaluates and selects each diamond before it goes anywhere near a customer.

If you want to see what that looks like in practice — or if you have something specific in mind — we're happy to help you find it.

Explore PURE® Lab Grown Diamonds →

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Frequently Asked Questions

Are lab-grown diamonds real diamonds?

Yes. Lab-grown diamonds are made of pure carbon with the same crystal structure, hardness and brilliance as mined diamonds. The only difference is where they were formed.

How are lab-grown diamonds made?

They're grown from a small diamond seed using one of two methods: CVD, where carbon settles onto the seed from a plasma, or HPHT, which recreates the extreme heat and pressure inside the earth. Both produce real diamonds in a matter of weeks.

Can a jeweller tell a lab-grown diamond from a mined one?

Not by eye. Lab-grown and mined diamonds look identical, even under a jeweller's loupe. Only specialized laboratory equipment can identify a stone's origin, which is why certified lab diamonds carry a laser-inscribed report number.

Do lab-grown diamonds hold their value?

Lab-grown diamonds cost far less to buy, and like most jewellery, they aren't a financial investment. Their value is in the ring itself: a larger or finer diamond for your budget, with ethical, traceable origins.

Why buy a lab-grown diamond from a Canadian jeweller?

Buying in Canada means prices in Canadian dollars, no surprise duties or broker fees at the border, and a local team to help with sizing, care and upgrades. Every Quorri ring is handcrafted in Canada in solid gold or platinum.