Lab Grown Diamonds vs Natural Diamonds: The Complete Honest Guide

Diamond Education 15 minute read  ·  By Peter Sakaris, Sakaris Jewelers Naples Florida

There is one question that comes up in almost every engagement ring consultation we have, and it comes up early. Should we get a natural diamond or a lab grown diamond? It is a smart question. And it deserves a genuinely honest answer, not a rehearsed pitch, not an inventory-driven recommendation, and not a vague "it depends" that leaves you more confused than when you started.

At Sakaris Jewelers, we offer both. We source both. And we have no financial reason to push you toward either one. What we care about is helping you make the best possible decision for your specific situation, your values, your goals, and your life.

This guide is the most complete and honest resource we know how to write on the subject. By the time you finish reading it, you will understand exactly what the differences are, what they mean for you, and how to make a decision you feel completely confident about.

What Is a Natural Diamond?

A natural diamond is a diamond that formed beneath the surface of the Earth, typically between 100 and 200 miles underground, over the course of one to three billion years. The conditions required to create a diamond naturally are extreme: temperatures approaching 2,200 degrees Fahrenheit and pressures roughly 725,000 pounds per square inch. Over geological timescales, carbon atoms arrange themselves into the crystal lattice structure we recognize as a diamond.

These stones are then transported closer to the Earth's surface through volcanic activity in formations called kimberlite pipes. Miners access them through open pit or underground mining operations, after which the rough diamonds are cut, polished, and eventually certified and sold.

The word that defines a natural diamond above all others is rarity. No two natural diamonds are identical. Each one carries the specific fingerprint of the geological conditions under which it formed. Inclusions, color gradients, and growth patterns are unique to each stone. This is not a flaw. It is the story of something genuinely ancient and irreplaceable.

What Is a Lab Grown Diamond?

A lab grown diamond is a diamond created in a controlled laboratory environment using one of two primary methods: High Pressure High Temperature (HPHT) or Chemical Vapor Deposition (CVD). Both methods replicate the conditions under which natural diamonds form. The result is a diamond with the same chemical composition, the same crystal structure, and the same physical and optical properties as a natural diamond.

Lab grown diamonds are not diamond simulants. They are not cubic zirconia. They are not moissanite. They are not synthetic in the way that word is commonly understood. They are real diamonds, grown from a carbon seed, composed entirely of carbon atoms arranged in the same crystalline structure as any diamond pulled from the Earth.

The process is remarkable. What takes nature billions of years, a laboratory can replicate in a matter of weeks.

"There is genuinely no physical difference between the two. They are both real diamonds made of carbon. One is formed naturally over billions of years within the Earth, while the other is created in a controlled laboratory environment using advanced technology that replicates the same conditions. Both are beautiful options. My job is not to push clients toward one or the other. My job is to educate them honestly and help them make the best possible decision for themselves."

Peter Sakaris — Founder, Sakaris Jewelers

Are Lab Grown Diamonds Real Diamonds?

Yes. Categorically and without qualification.

A lab grown diamond is a real diamond by every scientific, gemological, and physical measure that exists. The Gemological Institute of America, which is the global authority on diamond grading, certifies lab grown diamonds. The Federal Trade Commission updated its guidelines in 2018 to recognize lab grown diamonds as diamonds, removing the word “synthetic” from its recommended terminology.

The only thing a lab grown diamond is not is mined. That is a distinction of origin, not a distinction of quality or authenticity.

Can You Tell the Difference Between a Lab Grown and Natural Diamond?

With the naked eye: no. Not under normal circumstances. Not in a ring. Not on a hand. Not across a dinner table. Not even side by side.

A trained gemologist using specialized equipment can identify a lab grown diamond based on specific growth patterns and trace element composition. But this requires tools that no one carries in daily life, and the visual result, the sparkle, the brilliance, the fire, is identical.

What this means practically is that no one will ever look at her ring and know the difference. No one at the engagement party. No one at the wedding. No one at the grocery store. The ring will look beautiful because it is beautiful, regardless of where the diamond originated.

The Price Difference: What You Actually Get for Your Budget

This is where lab grown diamonds offer a genuinely compelling advantage, and where honest guidance matters most.

Lab grown diamonds typically cost 60 to 80 percent less than a comparable natural diamond. That is not a small difference. It is the kind of difference that changes the conversation entirely.

Here is what that means in real terms. Imagine a couple with a $15,000 budget for an engagement ring. With that budget and a natural diamond, they might be working with a 1.5 to 2 carat stone of excellent quality. That is a genuinely beautiful ring and a meaningful investment.

With the same budget and a lab grown diamond, they might be working with a 3 to 4 carat stone of equivalent or higher quality. The ring would be extraordinary. And they would still have $8,000 to $10,000 remaining.

That remaining budget could go toward the wedding itself. A honeymoon. A down payment on a home. The beginning of a financial life together. A future upgrade when the timing feels right.

This is not a compromise. This is a different set of priorities, equally valid and equally intelligent. The question is not which diamond is better. The question is what matters most to you, and what you want your investment to represent.

Resale Value and Investment Potential

This is where we owe you the most complete honesty, because this is where the conversation gets more nuanced.

Natural Diamonds and Long-Term Value

Natural diamonds have historically retained value over time better than most other luxury goods. High-quality, well-certified natural diamonds, particularly those graded by GIA in excellent cut, color, and clarity grades, tend to hold a meaningful portion of their purchase price in the resale market. They are finite. They are not being manufactured. Their supply is inherently limited by geology.

This does not mean a natural diamond is a financial investment in the traditional sense. The secondary market for diamonds is not as liquid or transparent as the stock market. Resale values vary based on size, quality, shape, and market conditions. But the long-term value story for natural diamonds is generally more stable.

Lab Grown Diamonds and Resale Value

Lab grown diamonds currently hold less resale value than natural diamonds. This is an honest and important fact to understand before you make a decision. If you purchase a lab grown diamond and later attempt to resell it, you should expect to receive considerably less than the original purchase price.

The 4 Cs: How We Grade Both

Both natural and lab grown diamonds are graded on the same criteria: cut, color, clarity, and carat weight.

Cut — The Most Important Factor

A well-cut diamond reflects light beautifully and appears alive, regardless of whether it is natural or lab grown. We always prioritize excellent cut above all other factors. A poorly cut diamond of excellent color and clarity will still look dull. A beautifully cut diamond of good but not exceptional grades will sparkle constantly.

Color

The grading scale runs from D (colorless) to Z (light yellow or brown). For natural diamonds, we typically recommend G to H color for the best balance of quality and value. For lab grown diamonds, the price difference between color grades is small enough that we often recommend D through F.

Clarity

For natural diamonds, VS1 to VS2 is the sweet spot: genuinely high quality without paying a premium for characteristics invisible to the naked eye. For lab grown diamonds, VVS clarity is often accessible within reasonable budgets.

Carat Weight

Carat refers to the weight of the diamond, not its size. Two diamonds of the same carat weight can look very different depending on their cut and shape. We help every client understand this distinction so they can maximize visual size within their budget.

Certification: GIA vs IGI

The certificate accompanying a diamond is one of the most important documents in the purchase.

For natural diamonds, we exclusively use GIA, the Gemological Institute of America. GIA invented diamond grading and remains the global gold standard. GIA-certified natural diamonds are universally recognized by insurers, appraisers, and buyers worldwide.

For lab grown diamonds, we use IGI, the International Gemological Institute. IGI has become the leading certification body for lab grown diamonds and is widely recognized and respected within the industry.

Both certifications provide a reliable, independent assessment of your diamond. We will always present you with the full certificate for any stone we recommend and walk you through every detail it contains.

Ethical and Environmental Considerations

This topic deserves honest treatment, because it is often oversimplified in both directions.

The Case for Lab Grown

Lab grown diamonds do not require mining. There is no land excavation, no displacement of earth, and no involvement of mining labor practices. For clients who have strong feelings about mining ethics or environmental impact, lab grown diamonds offer a clear alternative.

The Full Picture on Natural Diamonds

The diamond mining industry has changed significantly over the past two decades. The Kimberley Process, established in 2003, was designed to prevent conflict diamonds from entering the mainstream market. Ethical sourcing standards have improved, and many mining operations are major sources of employment and economic development in the communities where they operate.

It is also worth noting that lab grown diamond production, which requires substantial energy to generate the heat and pressure needed to grow diamonds, also carries an environmental impact. The energy source used in production matters significantly. Some facilities use renewable energy; others do not.

The honest answer is that neither option is perfectly clean or perfectly without impact. What matters is your personal values and what you feel comfortable with. Our role is not to tell you what to value. It is to give you the information to decide for yourself.

Durability: Is One Harder Than the Other?

No. Both natural and lab grown diamonds score 10 on the Mohs hardness scale, which is the maximum. Diamond is the hardest natural substance on Earth. A lab grown diamond is just as hard, just as durable, and just as scratch-resistant as a natural diamond. Both will last a lifetime of daily wear without issue.

The Emotional Dimension

This is the part of the conversation that is hardest to quantify but perhaps most important.

For many people, the age of a natural diamond carries genuine weight. Knowing that the stone in their ring formed two billion years ago, in silence and heat, deep beneath the surface of the Earth, before being unearthed and shaped for this specific purpose, carries a meaning that is difficult to articulate but genuinely felt.

For others, this dimension does not resonate in the same way. What matters to them is the relationship the ring represents, the quality of the stone, the beauty of the design, and the freedom to allocate resources wisely without sacrificing beauty.

Both of these responses are legitimate. Neither is more romantic or more practical than the other. They simply reflect different relationships to material objects and what they mean. We have helped clients who felt strongly about natural diamonds. We have helped clients who felt strongly about lab grown. And we have helped many clients who had no prior opinion and simply wanted the best possible outcome for their situation. In every case, the right answer was the one that felt right to them.

Common Myths About Lab Grown and Natural Diamonds

Who Should Choose Each?

Natural vs Lab Grown Diamonds: Side-by-Side Comparison

	Natural Diamond	Lab Grown Diamond
Chemical composition	Pure carbon	Pure carbon
Crystal structure	Identical	Identical
Hardness (Mohs)	10	10
Visually distinguishable	No	No
Certification	GIA (above 0.50ct)	IGI
Price relative	Higher	60–80% less
Resale value	Stronger	Lower
Rarity	Finite, geological	Produced in weeks
Durability	Lifetime	Lifetime
Best for	Value retention, rarity, legacy	Maximum size and quality per budget

How Sakaris Jewelers Sources Both

Whether you choose a natural or lab grown diamond, our sourcing process is the same: we hand-select every stone we present to a client.

For natural diamonds, we source GIA-certified stones from trusted dealers worldwide, reviewing each diamond not just for its certificate but for its actual light performance. Two diamonds can share an identical GIA report and look completely different in person. We source the one that looks exceptional, not just the one that qualifies on paper.

For lab grown diamonds, we use IGI-certified stones in the D through F color range and VVS clarity, with excellent cut, polish, and symmetry, and zero fluorescence. The same exacting standard. No compromises.

You will never be asked to commit to a diamond you have not reviewed. For in-person clients in Naples, we show you the loose diamond before anything is set. For remote clients, we share detailed specifications and in many cases video of the actual stone.

Frequently Asked Questions

The Bottom Line

Lab grown diamonds and natural diamonds are both real diamonds. Both are beautiful. Both will last a lifetime. The differences are in origin, price, and resale profile, and those differences matter differently to different people.

The right diamond is the one that feels right for your relationship, your values, and your life together. There is no wrong answer when you make the decision with complete information and no pressure.

That is exactly what we are here for.

Related reading:  The Complete Diamond Education Guide  ·  Custom Engagement Rings Naples FL  ·  Areas We Serve