What Is a Lab Grown Diamond?

A lab grown diamond is a real diamond that has been created in a controlled laboratory environment rather than formed naturally underground. It has the same chemical composition, crystal structure, and physical properties as a mined diamond – the only difference is how it was created. Modern technology allows scientists to recreate the conditions under which diamonds naturally form. The result is a diamond that looks, performs, and wears exactly like a natural diamond. Lab grown diamonds are graded using the same standards as natural diamonds and can be certified by independent laboratories such as IGI and GIA. For many buyers, the appeal of a lab grown diamond is the ability to choose a larger or higher-quality diamond while staying within budget, without compromising on appearance, durability, or beauty.

Is a Lab Grown Diamond a Real Diamond?

Yes. Lab grown diamonds are real diamonds. A diamond is defined by its composition and structure, not by where it comes from. Both lab grown and natural diamonds are made of crystallised carbon and share the same optical, physical, and chemical properties. They have the same hardness, sparkle, and durability, and both are graded using the Four Cs: Cut, Colour, Clarity, and Carat Weight. In fact, even trained jewellers cannot reliably identify a lab grown diamond simply by looking at it. Specialised equipment is required to determine whether a diamond was grown in a laboratory or formed naturally underground.

How Are Lab Grown Diamonds Made?

Lab grown diamonds are created using advanced technology that replicates the conditions under which natural diamonds form. There are two main production methods: High Pressure High Temperature (HPHT) and Chemical Vapour Deposition (CVD). Both methods start with a small diamond seed. Carbon atoms are then added around the seed, allowing the crystal to grow over several weeks. Once the diamond reaches the desired size, it is cut, polished, and graded in the same way as a natural diamond. Although the process is highly technical, the finished diamond is not an imitation or simulant. It is a genuine diamond with the same properties as one mined from the earth.

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

To the naked eye, no. Lab grown and natural diamonds look identical and display the same brilliance, fire, and sparkle. Even experienced jewellers cannot determine a diamond's origin simply by viewing it. Specialist laboratory equipment is needed to identify subtle growth patterns that indicate whether a diamond was grown in a laboratory or formed naturally underground. For everyday wear, there is no visible difference between a lab grown and natural diamond. The choice typically comes down to personal preferences around budget, sustainability, rarity, and value rather than appearance.

Are Lab Grown Diamonds Good for Engagement Rings?

Yes. Lab grown diamonds are an excellent choice for engagement rings because they offer the same beauty, durability, and longevity as natural diamonds. They are made from crystallised carbon, score 10 on the Mohs hardness scale, and are suitable for everyday wear. For many couples, the appeal lies in being able to choose a larger or higher-quality diamond without increasing their budget. Rather than compromising on carat weight, colour, or clarity, lab grown diamonds often provide more flexibility when selecting the ring that feels right for you. As a result, lab grown diamonds have become one of the fastest-growing choices for engagement rings, particularly among couples who value quality, sustainability, and value for money.

Why Choose a Lab Grown Diamond Engagement Ring?

Every couple has different priorities, but the most common reasons for choosing a lab grown diamond engagement ring are value, sustainability, and flexibility. Lab grown diamonds allow buyers to maximise their budget while still choosing a real diamond with exceptional beauty and durability. Many couples appreciate being able to purchase a larger diamond or invest more in the ring design itself without significantly increasing the overall cost. Others prefer the transparency of knowing exactly how their diamond was produced and sourced. Ultimately, choosing a lab grown diamond engagement ring allows you to focus on the ring that best suits your style, preferences, and budget rather than being limited by the cost of the diamond alone.

What Certification Should I Look For?

Independent certification is one of the most important factors to consider when purchasing a lab grown diamond. A grading report confirms the diamond's characteristics and provides an unbiased assessment of its quality. The two most widely recognised grading laboratories are IGI (International Gemological Institute) and GIA (Gemological Institute of America). Their reports detail the diamond's cut, colour, clarity, carat weight, proportions, and other important characteristics. A certified diamond provides greater transparency and makes it easier to compare different options. For most buyers, choosing a diamond with certification from a recognised laboratory provides valuable peace of mind when making such an important purchase.

Can I Customise a Lab Grown Diamond Engagement Ring?

Yes. Lab grown diamonds can be used in virtually any engagement ring design, from classic solitaire settings to fully bespoke creations. The diamond itself can be selected based on your preferred shape, size, quality, and budget. You can also choose from a wide range of ring styles, precious metals, setting types, and design features. Many couples personalise their ring with details such as hidden gemstones, special engravings, or custom design elements that make the ring uniquely theirs. Because lab grown diamonds often offer greater value for money, many buyers find they have more freedom to customise their ring without exceeding their budget. This flexibility is one of the reasons lab grown diamond engagement rings have become increasingly popular.

How Much Does a Lab Grown Diamond Cost?

Lab grown diamonds are typically 70-90% less expensive than an equivalent natural diamond, making them one of the biggest changes to the jewellery industry in recent decades. The exact cost depends on the diamond's shape, carat weight, colour, clarity, and cut quality. However, many buyers are surprised by how much quality they can achieve within their budget. Specifications such as D colour, VVS2 clarity, and Excellent cut, which can carry a significant premium in natural diamonds, are often far more accessible in lab grown diamonds. Rather than asking how much a lab grown diamond costs, many buyers find it more useful to ask what their budget can achieve. In many cases, a budget that might buy a 1ct natural diamond could allow for a significantly larger or higher-quality lab grown diamond while maintaining the same visual impact and durability.

Why Are Lab Grown Diamonds Cheaper?

Lab grown diamonds are cheaper because they can be produced more efficiently and at a much larger scale than mined diamonds. While both are real diamonds, the process of growing a diamond in a laboratory is far less complex than locating, developing, and operating a diamond mine. Mining requires exploration, geological testing, environmental approvals, specialised equipment, infrastructure, and ongoing operational costs. In contrast, advances in diamond-growing technology have dramatically reduced the cost of producing high-quality lab grown diamonds. As the technology has improved, more producers have entered the market, increasing supply and driving prices down. Twenty years ago, lab grown diamonds were difficult and expensive to produce. Today, technological advancements have made them a mainstream alternative. At the same time, natural diamond prices have also fallen, particularly in lower colour and clarity grades. Even so, lab grown diamonds remain significantly more affordable and continue to offer exceptional value for buyers seeking the highest quality for their budget.

How Much Bigger a Diamond Can I Get With the Same Budget?

The answer varies depending on the diamonds being compared, but it is not uncommon for buyers to increase their diamond size by 50% or more while remaining within a similar budget. One of the most noticeable differences between natural and lab grown diamonds is how pricing scales with size. Natural diamond prices tend to increase sharply as carat weight rises, particularly at popular milestones such as 1ct, 1.5ct, and 2ct. Lab grown diamonds follow a much gentler pricing curve, making larger diamonds far more attainable. While the average natural diamond engagement ring often features a diamond around the 1ct mark, many lab grown diamond engagement rings now feature diamonds between 1.5ct and 2ct. That said, bigger is not always better. The ideal diamond is one that suits the wearer's hand, style, and preferences. A well-proportioned diamond that complements the ring design will usually look better than simply choosing the largest carat weight available.

Do Lab Grown Diamonds Hold Their Value?

Lab grown diamonds are generally not purchased as investments and should not be expected to hold their value in the same way as traditional investment assets. Like a new car, most jewellery experiences an immediate reduction in resale value once purchased, regardless of whether the diamond is natural or lab grown. Because lab grown diamond prices have fallen significantly as technology has improved, resale values are typically lower than many buyers expect. For this reason, we encourage customers to view an engagement ring as a personal and sentimental purchase rather than a financial investment. The good news is that the savings available with lab grown diamonds can be substantial. Rather than spending significantly more on a natural diamond in the hope of retaining some value, many couples prefer to enjoy the benefits of a larger or higher-quality diamond and invest the difference elsewhere if long-term financial returns are important to them.

Are Lab Grown Diamonds Graded the Same as Other Diamonds?

Yes. Lab grown diamonds are graded using the same internationally recognised standards as natural diamonds. Independent laboratories assess the Four Cs—Cut, Colour, Clarity, and Carat Weight—as well as factors such as polish, symmetry, and fluorescence. The grading process is identical because the diamonds themselves are identical in composition and structure. A D colour, VVS2 clarity, Excellent cut lab grown diamond is graded to the same standard as a natural diamond with those specifications. This makes comparing diamonds straightforward. Whether you're considering a lab grown or natural diamond, certification from a recognised laboratory such as IGI or GIA provides an independent assessment of the diamond's quality and characteristics.

How Durable Are Lab Grown Diamonds?

Lab grown diamonds are just as durable as natural diamonds and are perfectly suited to everyday wear. They score 10 out of 10 on the Mohs hardness scale, making them one of the hardest materials found on Earth. Because they have the same crystal structure as natural diamonds, they offer the same resistance to scratching and everyday wear. There is no difference in durability between a lab grown and natural diamond of equivalent quality. As with any diamond, a hard knock in the wrong place can potentially chip the stone, particularly along edges or pointed corners. However, with normal wear and a well-designed setting, a lab grown diamond engagement ring can last a lifetime and beyond.

Do Lab Grown Diamonds Lose Their Sparkle?

No. Lab grown diamonds do not lose their sparkle over time. A diamond's brilliance comes from the way it interacts with light, and because lab grown diamonds have the same optical properties as natural diamonds, their sparkle remains unchanged throughout their lifetime. The diamond itself does not become dull, cloudy, or less brilliant with age. If a diamond appears less sparkly, the most common cause is simply a build-up of everyday dirt, oils, hand cream, or soap residue on the surface. Regular cleaning and occasional professional maintenance will keep a lab grown diamond looking as bright and brilliant as the day it was purchased.

Are Lab Grown Diamonds Ethical?

Many buyers choose lab grown diamonds because they offer greater transparency and control over how a diamond is produced. Unlike mined diamonds, lab grown diamonds do not require large-scale excavation and are not associated with many of the social and environmental concerns historically linked to diamond mining. Lab grown diamonds are also conflict free, meaning there is no risk of the diamond being linked to the funding of armed conflict. For couples who want confidence in the origin of their diamond, this can be an important factor in their decision. That said, ethics is not always black and white. The overall impact of a lab grown diamond can depend on where it was produced, the energy source used, and the standards followed by the manufacturer. Choosing a reputable jeweller who sources from responsible producers can help ensure your diamond aligns with your values.

Are Lab Grown Diamonds Environmentally Friendly?

Lab grown diamonds are generally considered to have a lower environmental impact than mined diamonds because they do not require mining, large-scale earth movement, or extensive land disturbance. Traditional diamond mining involves significant infrastructure, heavy machinery, and the movement of large amounts of rock and soil. Lab grown diamonds avoid many of these impacts by being produced in controlled facilities rather than extracted from the ground. However, producing diamonds in a laboratory still requires energy. The environmental impact of a lab grown diamond can vary depending on how that energy is generated. Producers using renewable energy sources will typically have a lower environmental footprint than those relying heavily on fossil fuels.

Are Lab Grown Diamonds Conflict Free?

Yes. Lab grown diamonds are considered conflict free because they are produced in laboratories rather than mined from regions affected by conflict or political instability. This eliminates concerns around so-called "blood diamonds" and allows buyers to have greater confidence in the origin of their diamond. For many couples, knowing their engagement ring is not connected to conflict is an important part of the purchasing decision. While the diamond industry has introduced measures such as the Kimberley Process to reduce the trade in conflict diamonds, lab grown diamonds remove this concern entirely by creating the diamond in a controlled environment from the very beginning.

What Is the Downside of Lab Grown Diamonds?

The main downside of lab grown diamonds is that they generally have lower resale value than natural diamonds. As production technology has improved and more manufacturers have entered the market, prices have fallen significantly, making lab grown diamonds more affordable but also reducing their value on the secondary market. For most engagement ring buyers, however, resale value is not the primary consideration. An engagement ring is usually purchased to celebrate a milestone, be worn every day, and potentially passed down through generations rather than sold in the future. Many couples feel the savings available with lab grown diamonds outweigh any concerns about resale value. It's also worth remembering that most jewellery, like most luxury purchases, depreciates after purchase. Rather than viewing an engagement ring as an investment, it is often more useful to focus on choosing a diamond and ring that you will enjoy wearing for years to come.

Are Lab Grown Diamonds Becoming More Popular?

Yes. Lab grown diamonds have become one of the fastest-growing categories within the jewellery industry and are now a mainstream choice for engagement rings. Much of this growth has been driven by improvements in quality, greater consumer awareness, and the exceptional value that lab grown diamonds offer. Buyers can often choose larger diamonds or higher specifications than would be possible with a natural diamond of the same budget, making them an attractive option for many couples. Consumer attitudes have also changed significantly. While lab grown diamonds were once viewed as a niche alternative, they are now widely accepted as real diamonds and are routinely considered alongside natural diamonds during the engagement ring buying process. For many modern couples, the decision is no longer whether lab grown diamonds are a legitimate choice, but simply which diamond best suits their preferences and budget.

Lab Grown Diamond Rings

Key Features of Lab Grown Diamonds

Identical to Natural Diamonds: Lab grown diamonds have the same hardness, brilliance, and fire as their mined counterparts.
Variety of Cuts: Available in a wide range of diamond shapes, including round, oval, pear, cushion, emerald, and princess.
High Clarity and Colour: Lab diamonds are often produced with excellent clarity and colour ratings.
Modern Appeal: A popular choice among those seeking a sustainable and contemporary alternative to mined diamonds.

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Handmade in Dublin

GIA & IGI Certified Diamonds

In-House Master Goldsmiths

Fully Customisable Designs

Ethical & Sustainable Choice

Why Choose Lab Grown Diamond Rings?

Lab grown diamonds are created using advanced technology that replicates the natural diamond-growing process, resulting in stones with the same physical, chemical, and optical properties as mined diamonds. Whether you prefer a classic round brilliant cut or a more distinctive shape like oval or emerald, lab grown options provide flexibility and beauty in equal measure.

These rings are increasingly popular for their combination of ethical sourcing, environmental responsibility, and exceptional value—making them a thoughtful choice for modern couples.

Lab Grown Diamond FAQs

Lab grown diamond engagement rings combine timeless elegance with ethical innovation, offering a modern way to celebrate your commitment. With full customisation options and expert guidance, you’re sure to find a ring that reflects your values and style.

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Understanding Lab Grown Diamonds
Choosing a Lab Grown Engagement Ring
Lab Diamonds Price & Value
Quality & Durability
Ethics & Sustainability
Common Concerns

Understanding Lab Grown Diamonds

Choosing a Lab Grown Engagement Ring

Like natural diamonds, lab grown diamonds are graded using the Four Cs: Cut, Colour, Clarity, and Carat Weight. However, because lab grown diamonds are more affordable, the usual compromises buyers make with natural diamonds are often unnecessary.

For most buyers, cut quality should remain the priority. An Excellent cut diamond will maximise sparkle and brilliance, regardless of its size. Once you’ve chosen your preferred shape and carat weight, colour and clarity become surprisingly affordable upgrades. While many natural diamond buyers settle for F, G, or even H colour diamonds to stay within budget, lab grown buyers can often choose a D colour diamond for little or no additional cost. Since D, E, F, and G colour diamonds can look virtually identical once set in a ring, opting for D colour is often a sensible upgrade when the price difference is minimal.

The same applies to clarity. We generally recommend a minimum of VS1 clarity, as inclusions are typically invisible to the naked eye at this grade. However, unlike natural diamonds, upgrading from VS1 to VVS2 or even VVS1 can often add surprisingly little to the overall cost. As a result, many buyers choose to maximise quality while maintaining excellent value. In practice, this means many lab grown diamond engagement rings feature specifications such as D colour, VVS2 clarity, and Excellent cut—grades that would often carry a significant premium in a natural diamond.

When comparing diamonds, it is important to look at the complete package rather than focusing solely on carat weight. A slightly smaller diamond with an Excellent cut, D colour, and VVS2 clarity will often appear more impressive than a larger stone with lower grades. One of the biggest advantages of lab grown diamonds is that they allow buyers to achieve exceptional quality across all four Cs without exceeding their budget.

Lab Diamonds Price & Value

Quality & Durability

Ethics & Sustainability

Common Concerns

Why choose

Bespoke Diamonds

We ensure everything we sell is ethically sourced

Our jewellery is made exclusively in Ireland

We hand craft every piece of fine jewellery

Free Sonic Cleaning for Life

Multi Award Winning Jewellers

Dublin & Cork

Ethical Sourcing

Lab grown diamonds offer an ethical alternative to traditional mining. All diamonds used—lab created or natural—at Bespoke Diamonds are responsibly sourced. Choosing a lab grown option can be a conscious decision to support sustainability without sacrificing quality or style.

Beautiful Packaging

At Bespoke Diamonds, every piece is presented with the same care and attention as the jewellery itself. Our engagement rings are showcased in elegant single ring boxes, while our wedding rings are paired together in double boxes designed to hold both rings for displaying.

All of our packaging is thoughtfully designed and sustainably produced, reflecting our commitment to both quality and the environment.

Free sonic cleaning at Bespoke Diamonds Dublin in Ireland

A lifetime of good looks awaits

All our diamond engagement rings come with free life time sonic cleaning.

Please drop in whenever is convenient for you and we can sonic clean your ring in a few minutes.

Our goldsmith at Bespoke Diamonds Jewellers in Dublin

Manufactured, Assayed and Assembled in Ireland

Our workshop in Kildare Street, Dublin 2 is where we make each ring and have them assayed and hallmarked in Dublin Castle.

Every piece passes through 7-10 pairs of hands along the way, ensuring the finest craftsmanship and quality control.

Free independent valuation

We provide a free independent valuation with all* engagement ring purchases.

We also offer a courtesy internal valuation which we can update every two years for insurance purposes.

*not available where customers provide their own diamond or gemstones

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