Natural vs lab-grown diamond: which should you buy?

If you're shopping for a diamond in the USA, one of the first decisions you'll need to make is whether to choose a natural diamond or a lab-grown diamond.

Both are real diamonds. Both are composed primarily of carbon and have the characteristic crystal structure of diamond. Both can be graded for the 4Cs—cut, color, clarity and carat—and both can be used in engagement rings and fine jewellery.

The biggest difference is their origin.

Natural diamonds form naturally beneath the Earth's surface through geological processes. Lab-grown diamonds are created in controlled laboratory environments using advanced technology.

So, which should you buy: a natural or lab-grown diamond?

The answer depends on what matters most to you. Natural origin and rarity may be important to one buyer, while price, diamond size or specific specifications may be more important to another.

This guide explains the differences between natural vs lab-grown diamonds, including price, quality, appearance, certification, rarity, durability and engagement rings, so you can make a more informed buying decision.

Natural vs lab-grown diamonds at a glance

The most important point to understand is that a lab-grown diamond is not a diamond imitation.

A lab-grown diamond is diamond material. It is different from simulants such as cubic zirconia, which are separate materials that resemble diamond.

What is a natural diamond?

A natural diamond forms deep within the Earth under extremely high temperatures and pressures.

Carbon atoms crystallise through geological processes over immense periods of time. Natural geological activity can eventually bring diamond-bearing material closer to the Earth's surface, where diamonds may be recovered and prepared for jewellery.

Natural diamonds are valued for their geological origin, natural scarcity and individual characteristics.

Each natural diamond can have its own combination of inclusions, color characteristics and growth features.

Why do people choose natural diamonds?

Some buyers prefer natural diamonds because they value:

• Natural geological origin

• Natural rarity

• Geological history

• Traditional diamond provenance

• Individual characteristics

• The story associated with a naturally formed gemstone

For these buyers, the origin of the diamond can be an important part of its meaning.

Other buyers may place greater emphasis on the diamond's appearance, specifications, size or price.

What is a lab-grown diamond?

A lab-grown diamond is a diamond produced in a controlled laboratory environment.

Instead of forming naturally beneath the Earth, it is grown using technology that creates the conditions required for diamond formation.

The two primary methods used to produce lab-grown diamonds are:

• Chemical Vapour Deposition (CVD)

• High Pressure High Temperature (HPHT)

The resulting diamond can then be cut and polished for use in jewellery.

Lab-grown diamonds are available in many of the same shapes, carat weights, colors and clarity grades as natural diamonds.

Are lab-grown diamonds real diamonds?

Yes. This is one of the most common questions when comparing lab-grown vs natural diamonds.

Lab-grown diamonds are real diamonds. They are not the same as diamond simulants.

A lab-grown diamond has the fundamental chemical composition and crystal structure associated with diamond. The primary distinction is how the diamond was formed.

Professional gemological laboratories can identify whether a diamond is natural or laboratory-grown using specialised testing.

Natural diamond vs lab-grown diamond: what is the difference?

When comparing natural diamond vs lab-grown diamond, the differences can be divided into several areas:

• Origin

• Rarity

• Price

• Production

• Market characteristics

• Personal preference

At the same time, many fundamental characteristics are shared.

Both are diamond material. Both can be highly durable. Both can be cut into popular diamond shapes. Both can be graded using the 4Cs.

This is why buyers should look at both origin and individual diamond quality.

Do natural and lab-grown diamonds look different?

A natural diamond and a lab-grown diamond can have a very similar visual appearance.

For most buyers, the origin cannot be determined simply by looking at the stone.

The appearance of an individual diamond depends on factors including:

• Cut quality

• color

• Clarity

• Carat

• Shape

• Proportions

• Polish

• Symmetry

• Lighting

This means a buyer comparing two diamonds should evaluate the actual stones rather than relying only on whether they are natural or lab-grown.

A well-cut lab-grown diamond can display excellent brilliance, while a natural diamond with weaker cut characteristics may not perform as well visually.

Natural vs lab-grown diamond price

Price is one of the biggest differences for many diamond buyers in the USA.

In general, lab-grown diamonds have lower retail prices than natural diamonds with comparable characteristics.

This can give buyers more flexibility when working with a fixed diamond budget.

For example, a buyer may be able to consider a larger lab-grown diamond at a particular budget, while a natural diamond with similar characteristics and size may require a higher spend.

However, diamond pricing is not determined by origin alone.

Prices can vary according to:

• Carat weight

• Cut

• color

• Clarity

• Shape

• Certification

• Proportions

• Market conditions

Why are lab-grown diamonds less expensive?

Natural diamonds have a naturally limited geological supply.

Lab-grown diamonds are produced using controlled technological processes, which allows production to be increased according to manufacturing capacity.

This difference in supply contributes to the price distinction between the two categories.

The result is that lab-grown diamonds can give buyers additional flexibility when choosing carat weight and other specifications.

Natural vs lab-grown diamond price comparison

A lower price does not automatically mean lower quality. Similarly, a higher price does not automatically mean a diamond will look better.

The individual diamond still needs to be evaluated.

Natural vs lab-grown: which is rarer?

Natural diamonds are naturally scarce because their formation depends on specific geological conditions.

Lab-grown diamonds are produced using controlled manufacturing processes.

For a buyer who places significant importance on natural diamond rarity, this distinction may be an important part of the purchasing decision.

A lab-grown diamond can still be a genuine diamond while having a different origin and supply profile.

Natural vs lab-grown diamonds and the 4Cs

Whether you're buying a natural or lab-grown diamond, the 4Cs remain important.

The four Cs are:

• Cut

• color

• Clarity

• Carat

They provide a common framework for understanding and comparing individual diamonds.

Diamond cut

Cut describes how a diamond's proportions, facets and finish interact with light.

A well-cut diamond can produce strong brilliance, fire and scintillation.

Cut should not be confused with diamond shape.

Round, oval, emerald, cushion and pear are examples of shapes, while cut describes aspects of how the diamond has been proportioned and finished.

Diamond color

Diamond color describes the degree of color present in a diamond.

For traditional colorless diamond grading, the scale generally runs from D through Z.

The appropriate color grade can depend on:

• Diamond shape

• Setting metal

• Personal preference

• Budget

• Desired appearance

Diamond clarity

Clarity describes internal characteristics, known as inclusions, and external characteristics, known as blemishes.

A higher clarity grade does not automatically mean a diamond will look dramatically different to the naked eye.

The location, size and visibility of characteristics matter when assessing an individual stone.

Diamond carat

Carat measures diamond weight. It does not directly measure how large the diamond appears from above.

Two diamonds with the same carat weight can have different face-up dimensions depending on their shape and proportions.

This is why diamond carat size should be considered alongside measurements and shape.

Natural vs lab-grown: which matters more, origin or quality?

This depends on your priorities.

Origin answers:

Where did the diamond come from?

The 4Cs and grading information help answer:

What are the characteristics of this particular diamond?

These are different considerations. A natural diamond is not automatically visually superior to every lab-grown diamond.

Likewise, choosing a lab-grown diamond does not automatically mean choosing a higher-quality diamond.

When comparing actual stones, look at the individual diamond's specifications and grading information.

For buyers who want to compare diamonds already selected for their characteristics, Luxsso's hand-picked diamonds collection can provide another starting point.

Natural vs lab-grown diamonds for engagement rings

Both natural and lab-grown diamonds are used in diamond engagement rings.

The choice often comes down to personal preferences, budget and the characteristics you want in the finished ring.

Natural diamond engagement rings

A natural diamond engagement ring may appeal to someone who values:

• Natural geological origin

• Natural rarity

• Geological history

• Traditional diamond provenance

• Naturally formed gemstones

Explore Luxsso's engagement ring collection to see different ring designs and diamond styles.

Lab-grown diamond engagement rings

A lab-grown diamond engagement ring may appeal to someone who prioritises:

• Lower initial purchase price

• Larger centre-stone options within a budget

• Specific 4Cs characteristics

• Greater flexibility with the overall jewellery budget

• Laboratory-created origin

Luxsso also offers a dedicated lab-grown diamond engagement ring collection.

Which diamond should you buy for an engagement ring?

If you're asking “Should I buy a natural or lab-grown diamond?”, start with your priorities.

Consider:

• How important is natural origin?

• How important is diamond size?

• What is your budget?

• Which diamond shape do you prefer?

• What cut quality are you looking for?

• How important is certification?

• What color and clarity range do you want?

• How important is the overall ring design?

If natural origin and rarity are central to your decision, a natural diamond may align with your priorities.

If maximising diamond size or particular specifications within a budget is more important, a lab-grown diamond may provide additional flexibility.

Natural vs lab-grown diamonds for everyday jewellery

The comparison isn't limited to engagement rings.

Both natural and lab-grown diamonds can be used in:

• Diamond earrings

• Diamond stud earrings

• Diamond necklaces

• Diamond pendants

• Diamond bracelets

• Diamond rings

• Tennis jewellery

• Other fine jewellery

For example, buyers comparing diamond earrings can explore Luxsso's diamond earrings collection or browse diamond stud earrings.

For buyers specifically interested in laboratory-grown stones, Luxsso also has a lab-grown diamond earrings collection.

What should you compare when buying diamond earrings?

Natural vs lab-grown diamond certification

Certification is an important consideration when buying either type of diamond.

A professional diamond grading report provides information about the stone and can make comparison easier.

Depending on the laboratory and report type, information may include:

• Diamond origin

• Carat weight

• color

• Clarity

• Cut

• Measurements

• Polish

• Symmetry

• Fluorescence

• Proportions

• Report number

Natural and lab-grown diamonds can both receive independent grading reports. The documentation should clearly identify the diamond's origin.

GIA, IGI and GCAL diamond certification

USA diamond buyers may encounter reports from laboratories including:

• GIA

• IGI

• GCAL

Each laboratory has its own grading systems and report formats.

When comparing diamonds, don't focus only on the laboratory name. Review the actual grading information for the individual diamond.

For buyers interested in GCAL diamonds, GCAL also has grading programs covering specific aspects of diamond quality and performance.

Are lab-grown diamonds as durable as natural diamonds?

Both natural and lab-grown diamonds are diamond material and are highly durable.

Diamond is known for its exceptional hardness, which makes it well suited to jewellery designed for regular wear.

However, hardness does not mean that a diamond is impossible to damage.

A diamond can potentially chip or become damaged by a strong impact, particularly around vulnerable areas depending on its shape and cut.

The jewellery setting also plays an important role in protecting the stone.

Natural vs lab-grown diamonds and sustainability

Sustainability is another consideration for some diamond buyers. However, it is important not to make broad assumptions about either category.

The environmental characteristics of a diamond can depend on factors including:

• Energy sources

• Mining practices

• Manufacturing processes

• Location

• Supply chain

• Land use

• Operational efficiency

Lab-grown diamonds are produced without traditional diamond mining, but their production requires energy and manufacturing infrastructure.

Natural diamond sourcing can also vary depending on the operation, location and supply chain involved.

If sustainability is important to you, look for specific information about sourcing and production rather than relying on broad statements.

What about diamond resale value?

Resale value is another consideration when comparing natural vs lab-grown diamonds.

Neither type should automatically be considered a guaranteed investment.

The original retail price of a diamond does not necessarily determine its future secondary-market price.

Resale considerations can be affected by:

• Diamond characteristics

• Certification

• Market conditions

• Supply and demand

• Retail pricing

• Secondary-market demand

• Diamond origin

Lab-grown diamond prices have also changed as production technology and supply have developed.

If resale is important to you, research current market conditions rather than assuming that either type will appreciate.

Should you buy a bigger lab-grown diamond or a smaller natural diamond?

This is one of the most practical questions in the natural vs lab-grown diamond decision.

Imagine your budget gives you two choices:

Option A: A smaller natural diamond

Option B: A larger lab-grown diamond

The right choice depends on what you value.

Ask yourself:

• Is natural origin important to me?

• Is diamond size important?

• Do I value natural rarity?

• Would I rather allocate more of my budget to the setting?

• Do I want specific 4Cs characteristics?

• How important is the overall ring design?

• What does the person receiving the jewellery value?

For buyers interested in creating a ring around their preferred diamond, Luxsso's build-your-own diamond ring option provides another way to approach the selection process.

How to choose between natural and lab-grown diamonds

Use this framework when comparing your options.

A natural diamond may suit you if you prioritise:

• Natural geological origin

• Natural rarity

• Geological history

• Traditional diamond provenance

• Naturally formed gemstones

A lab-grown diamond may suit you if you prioritise:

• Lower initial purchase price

• Larger carat weight within a budget

• Particular 4Cs characteristics

• Greater budget flexibility

• Laboratory-created origin

If you're still undecided

Don't make the decision based only on category.

Compare individual diamonds using:

1. Origin

2. Shape

3. Carat

4. Cut

5. color

6. Clarity

7. Measurements

8. Certification

9. Price

10. Setting

This makes the comparison more practical and helps you understand exactly what you're purchasing.

Common mistakes when choosing between natural and lab-grown diamonds

Choosing a diamond based on just one factor can lead to an unsuitable purchase. Here are some common mistakes to avoid when comparing natural and lab-grown diamonds. 

Choosing based only on carat

A larger diamond is not automatically a better diamond. Cut quality, proportions, colour, clarity and shape can significantly influence appearance.

Assuming lab-grown means lower quality

Origin and quality are separate considerations. A lab-grown diamond can have excellent cut, colour and clarity characteristics.

Assuming natural means perfect

Natural diamonds can contain inclusions and colour characteristics. The word “natural” does not describe the diamond's 4Cs.

Ignoring certification

A reputable grading report can provide valuable information about the diamond you are considering.

Comparing only price

Price should be considered alongside specifications, certification, origin and overall jewellery design.

Treating diamonds as guaranteed investments

Diamond ownership should primarily be approached as a jewellery purchase rather than a guaranteed financial investment.

A thoughtful comparison of origin, quality, certification and price can help you choose with confidence.

Questions to ask before buying a diamond online

If you're planning to buy a diamond online in the USA, consider asking:

• Is the diamond natural or lab-grown?

• What is the carat weight?

• What is the cut grade?

• What is the color or color grade?

• What is the clarity grade?

• Which laboratory graded the diamond?

• Can I review the grading report?

• Does the report correspond to the diamond?

• What are the measurements?

• What is the diamond shape?

• Does it have fluorescence?

• What is the return policy?

• How will the diamond be shipped?

• Can the order be tracked?

• What happens if the jewellery arrives damaged?

• What is included in the jewellery price?

Clear answers can make online diamond shopping more straightforward.

Natural vs lab-grown diamond: which should you buy?

There is no universal answer to “natural or lab-grown diamond?”

Both are genuine diamonds, but their origins are different.

A natural diamond offers geological origin and natural rarity. A lab-grown diamond is created in a controlled laboratory environment and can provide greater flexibility around diamond size and specifications for a particular budget.

The right choice depends on your priorities.

The most useful approach is to compare actual diamonds, rather than comparing categories alone.

Look at the 4Cs, certification, measurements, shape, price and overall appearance, while also considering whether natural or laboratory-grown origin matters to you.

Explore diamond jewellery at Luxsso

Once you've decided which type of diamond suits your priorities, the next step is to explore the jewellery category that fits your purchase.

You can browse:

• Natural diamond rings for naturally formed diamond ring designs.

• Lab-grown diamond jewellery for jewellery featuring laboratory-grown diamonds.

• Diamond rings across different designs and styles.

• Diamond pendants for diamond necklace and pendant designs.

• Diamond bracelets for diamond bracelet styles.

• Diamond wedding rings for wedding jewellery.

• Lab-grown diamond rings for laboratory-grown diamond ring designs.

For engagement ring shoppers, Luxsso also offers collections organised around different engagement ring styles and diamond shapes.

Conclusion

The decision between a natural vs lab-grown diamond comes down to more than price.

Natural diamonds offer a naturally formed origin and geological rarity. Lab-grown diamonds offer a laboratory-created origin and can provide greater flexibility around size and specifications for a particular budget.

Neither choice needs to be made based on assumptions.

Start with what matters to you, then compare individual diamonds by their 4Cs, certification, measurements, shape, price and overall appearance.

Whether you're shopping for a diamond engagement ring, diamond earrings, a pendant or another piece of fine jewellery, understanding the difference between natural and lab-grown diamonds can help you choose a diamond that fits your preferences, priorities and budget.

Frequently asked questions

Is a natural diamond better than a lab-grown diamond?

There isn't one answer for every buyer. Natural diamonds offer natural geological origin and rarity, while lab-grown diamonds can provide greater flexibility in size and specifications within a particular budget.

Are lab-grown diamonds real diamonds?

Yes. Lab-grown diamonds are real diamonds produced in controlled laboratory environments. They are diamond material rather than diamond simulants.

What is the difference between natural and lab-grown diamonds?

The primary difference is origin. Natural diamonds form through geological processes, while lab-grown diamonds are created using controlled technological processes such as CVD or HPHT.

Are lab-grown diamonds cheaper than natural diamonds?

Generally, yes. Lab-grown diamonds typically have lower retail prices than natural diamonds with comparable characteristics, although prices vary between individual stones.

Can you tell the difference between a natural and lab-grown diamond?

The origin generally cannot be determined reliably just by looking at the diamond. Professional gemological laboratories use specialised methods to identify whether a diamond is natural or laboratory-grown.

Do lab-grown diamonds have the same 4Cs?

Yes. Lab-grown diamonds can be evaluated for cut, color, clarity and carat, just like natural diamonds.

Are lab-grown diamonds as durable as natural diamonds?

Both are diamond material and are highly durable. However, any diamond can potentially chip or become damaged by a strong impact.

Are natural diamonds rarer than lab-grown diamonds?

Yes. Natural diamonds are limited by geological formation and natural supply, while lab-grown diamonds can be produced using controlled manufacturing processes.

Which is better for an engagement ring: natural or lab-grown?

Both can be used for engagement rings. The decision depends on your priorities, including origin, rarity, budget, carat size, 4Cs characteristics and personal preference.

Should I buy a natural or lab-grown diamond for the same budget?

Compare what each option provides. A lab-grown diamond may allow you to consider a larger stone or different specifications, while a natural diamond may appeal if natural origin and rarity are important to you.

Is a lab-grown diamond an imitation?

No. A lab-grown diamond is diamond material created in a laboratory. It is different from diamond simulants such as cubic zirconia.

What is the difference between a lab-grown diamond and moissanite?

They are different materials. A lab-grown diamond is diamond produced in a laboratory, while moissanite is a separate gemstone that can be used as a diamond alternative.

What certification should I look for when buying a diamond?

Look for a reputable independent grading report and review the actual information provided for the individual diamond. GIA, IGI and GCAL are among the laboratories buyers may encounter.

Are GCAL diamonds natural or lab-grown?

GCAL grades both natural and laboratory-grown diamonds, depending on the individual stone and report. The grading documentation identifies the diamond's origin.

Do natural diamonds have better resale value?

Resale value isn't guaranteed for either type. Market conditions, supply, demand, certification, retail pricing and the characteristics of the individual diamond can all influence resale.

Is a lab-grown diamond a good choice?

A lab-grown diamond may suit buyers who prioritise price, size or particular specifications. The appropriate choice depends on the buyer's individual priorities.

Is a natural diamond worth the higher price?

That depends on what you value. Buyers who place importance on natural origin and rarity may consider those characteristics important, while others may prioritise diamond size and specifications within their budget.