It can be overwhelming to choose the perfect lab-grown diamond ring from the countless options available. A comprehensive buying guide can simplify this process and help you find the best piece.

But why opt for a lab-grown diamond ring in the first place?

While this topic has been mentioned many times it's worth reiterating the key benefits.

Lab-grown diamonds offer exceptional quality, brilliance, and durability, indistinguishable from their natural counterparts.

Moreover, they represent a more ethical and sustainable choice, as their creation doesn't involve the environmental and social impacts associated with diamond mining.

If you’re planning to buy a lab grown diamond ring and don’t know how and where to start, this article is for you.

We will cover every relevant detail you need to know on buying lab grown diamond rings.

Factors to Consider When Buying a Lab Grown Diamond Ring

Choosing the perfect lab-grown diamond ring involves careful consideration of several factors. Understanding these elements will help you select a stone that not only meets your aesthetic preferences but also represents excellent value.

The Four Cs: Cut, Color, Clarity, and Carat

Just like natural diamonds, lab-grown diamonds are evaluated based on the four Cs: Cut, Color, Clarity, and Carat.

Evaluating Cut Quality in Lab Grown Diamonds

The cut of a diamond, whether natural or lab-grown, determines its brilliance, fire, and scintillation. An excellent cut maximises the diamond's light return, creating a dazzling sparkle. Grading scales for cut are the same for both natural and lab grown diamonds. It is essential to look beyond the grade and assess the diamond's overall appearance.

Color Grading for Lab Grown Diamonds

Lab-grown diamonds are graded using the same colour scale as natural diamonds, ranging from D (colourless) to Z (light yellow or brown). However, due to the controlled environment in which they are created, lab-grown diamonds often exhibit higher colour grades.

Clarity Characteristics Unique to Lab Grown Diamonds

While lab-grown diamonds can have inclusions similar to natural diamonds, they can also exhibit unique characteristics due to the growth process. These may include growth lines, strain, or small bubbles. The specific creation methods impact the types of inclusions found. High-pressure, high-temperature (HPHT) lab-grown diamonds may have small metallic inclusions from the growth process. Chemical vapour deposition (CVD) diamonds can exhibit black spots or graphite inclusions. While these inclusions are often microscopic, they can affect the overall clarity grade and sometimes may serve as indicators of the diamond's synthetic origin.

To assess a diamond’s clarity, a grading process is employed to evaluate its internal and external imperfections, known as inclusions and blemishes, respectively. Graders examine the diamond under a 10x magnification loupe to determine the size, number, and location of these flaws. Based on this thorough evaluation, the diamond is assigned a clarity grade.

Here's a straightforward breakdown:

Clarity Grade	Description
Flawless (FL)	No inclusions or blemishes visible under 10x magnification.
Internally Flawless (IF)	No inclusions, only minor blemishes visible under 10x magnification.
Very, Very Slightly Included (VVS1 & VVS2)	Inclusions are very difficult to see under 10x magnification.
Very Slightly Included (VS1 & VS2)	Inclusions are minor and range from difficult (VS1) to somewhat can be seen (VS2) under 10x magnification.
Slightly Included (SI1 & SI2)	Inclusions are noticeable under 10x magnification and may be visible to the naked eye.
Included (I1, I2, I3)	Inclusions are obvious under 10x magnification and can affect transparency and brilliance. These inclusions are often visible to the naked eye.

Clarity impacts a diamond’s beauty and value, with fewer inclusions and blemishes resulting in a higher clarity grade and often a higher price.

Learn more in our guide here on Selecting Authentic Lab-Grown Diamonds.

Carat Weight Considerations

Just like natural diamonds, lab-grown diamonds are available in a wide range of carat weights. Lab-grown diamonds, particularly those between 1 and 3 carats, are especially sought-after.

Similar to natural diamonds, the price per carat of lab-grown diamonds tends to increase more rapidly as the carat weight increases.

While the overall price of larger lab-grown diamonds is generally lower than that of their natural counterparts, the price difference becomes more pronounced for larger stones. This is due to the limited supply of larger diamonds, whether natural or lab-grown, which impacts their overall value. Like natural diamond formation, larger diamonds are more difficult to grow in the lab, contributing to their higher value.

Certification and Grading

One crucial aspect of purchasing a lab-grown diamond ring is also understanding the certification process.

Reputable Grading Laboratories for Lab-Grown Diamonds

Several reputable gem labs can grade lab-grown diamonds, including the American Gem Society (AGS), the GIA, the International Gemological Institute (IGI), HRD Antwerp, and the Gem Certification and Assurance Lab (GCAL).

The IGI has historically been a popular choice for both consumers and jewellers seeking lab-grown diamond grading reports. While policies regarding lab-grown diamond grading have evolved among major labs, with the GIA and AGS now offering full grading reports, the IGI continues to be a widely recognized and trusted source of certification for lab-grown diamonds. This is reflected in the high number of lab-grown diamonds in the market that carry the IGI certification.

Understanding Lab-Grown Diamond Certificates

A lab-grown diamond certificate provides a detailed assessment of the stone's quality, including its cut, colour, clarity, and carat weight. It also confirms the diamond's synthetic origin. When purchasing a lab-grown diamond, it's essential to request a certificate from a reputable laboratory. This document serves as proof of the diamond's quality and authenticity.

Choosing the Right Diamond Shape

The shape of a diamond significantly influences the overall appearance of a ring. Let's explore popular options and how to select the perfect shape for your style and hand.

Popular Lab-Grown Diamond Ring Shapes

The shape of a diamond is a matter of personal preference, but some cuts are more popular than others.

Round Brilliant Cut: The classic choice, renowned for its maximum brilliance and fire. The round cut is versatile and complements most ring styles.
Fancy Shapes: Offering a wider range of options, fancy shapes include:
- Princess: A square or rectangular cut with sharp corners, known for its modern and elegant look.
- Cushion: A blend of round and square shapes, offering a vintage-inspired charm with excellent brilliance.
- Oval: An elongated version of the round cut, creating an illusion of larger size and flattering finger shape.
- And many more, including emerald, pear, heart, and marquise cuts.

Matching Diamond Shape to Personal Style and Hand Shapes

The ideal diamond shape depends on your personal style and hand shape. Here are some general guidelines:

Long Fingers
- Round: Classic and timeless, it suits most hand shapes but particularly complements long fingers.
- Oval: The elongated shape of an oval diamond can make long fingers appear even more elegant.
- Emerald: The rectangular shape of an emerald cut complements the length of long fingers.
- Marquise: This cut can accentuate the length of long fingers while adding a touch of uniqueness.
Short Fingers
- Oval: An oval cut can make short fingers look longer due to its elongated shape.
- Pear: The teardrop shape of a pear diamond can create an illusion of length for short fingers.
- Marquise: The pointed ends of a marquise diamond can make short fingers appear longer and slenderer.
Wide Fingers
- Oval: The elongated shape can help balance the width of the fingers.
- Emerald: Its long, rectangular shape can create a slimming effect on wide fingers.
- Marquise: The length of the marquise cut can make wide fingers appear narrower.
- Pear: This cut can also help create an illusion of slimmer fingers.
Slender Fingers
- Round: The classic round cut looks balanced and beautiful on slender fingers.
- Princess: The square shape adds a bit of width, making slender fingers look slightly wider.
- Cushion: The soft, rounded edges of the cushion cut complement slender fingers well.
Large Hands
- Radiant: The bold and bright shape of a radiant cut can complement larger hands.
- Asscher: The square shape with its step-cut facets looks great on larger hands.
- Cushion: The rounded corners and large facets of the cushion cut can balance larger hands.
- Round: A larger round diamond can look stunning on large hands, offering a classic appeal.
Large Knuckles
- Wide Band with any Shape: A wider band can help draw attention away from large knuckles. Pair it with any diamond shape that complements your finger shape.
Small Hands
- Round: Classic and simple, suitable for small hands without overwhelming them.
- Oval: The elongation can make small hands appear longer and more graceful.
- Heart: Adds a playful and romantic touch without overwhelming small hands.

Additional Tips

Consider Band Style: The style and width of the band can also influence how a diamond looks on your hand. Wider bands can make fingers look shorter, while thinner bands can elongate them.
Try Different Shapes: Personal preference plays a significant role. It’s always a good idea to try on different shapes to see what looks and feels best.

Ultimately, the best way to choose a diamond shape is to try on different styles and see what looks best on you.

Setting Styles for Lab-Grown Diamond Rings

The setting style significantly impacts the overall look of a diamond ring. Let's explore some classic and contemporary options.

Classic Settings

These timeless settings enhance the diamond's brilliance and elegance.

Setting Type	Description
Solitaire	This setting showcases the diamond as the sole focal point, with no other stones to distract from its beauty. The diamond is typically held in place by a prong setting, which is a metal claw that grips the stone.
Halo	To enhance the diamond's size and sparkle, a halo setting surrounds the center stone with a circle of smaller diamonds. This creates an illusion of a larger diamond and adds extra brilliance.
Pavé	This setting creates a dazzling, sparkling effect by setting tiny diamonds closely together on the band. The diamonds are often set so tightly that it appears the band is covered in a continuous layer of sparkle.

Contemporary Designs

Modern settings offer unique and innovative styles.

Setting Type	Description
Tension Settings	This unique setting holds the diamond in place using the metal band's pressure. The diamond appears to float, creating a minimalist and modern look.
Bezel Settings	In a bezel setting, the diamond is fully encircled by a metal rim, protecting the stone and creating a sleek, contemporary look.
Innovative Modern Styles	Beyond the classic and contemporary styles mentioned above, there are countless other innovative designs. These can include mixed metal settings, asymmetrical arrangements, geometric patterns, and unique shapes that push the boundaries of traditional ring design.

Choosing the right setting depends on your personal style, the diamond's shape, and the overall look you desire.

Metal Options for Lab-Grown Diamond Rings

The metal chosen for your ring impacts its overall appearance, durability, and comfort. Here’s a guide for you to choose the right metal that will suit your style and preferences.

First in the list we have gold options:

Gold Options

Gold is a classic and popular choice for diamond rings. It comes in various colours and alloys.

Yellow Gold: This traditional option offers a warm and timeless look. It is typically mixed with other metals to create different karats, with 18k being a common choice.
White Gold: Valued for its sleek look, white gold is an alloy of gold with palladium and other metals. It is typically coated with rhodium, a rare platinum-group metal, to achieve its characteristic white luster. This plating is optional as some prefer the natural, slightly warmer aesthetic tone of unplated white gold
Rose Gold: This romantic and trendy option combines gold with copper and other metals, creating a warm pink hue. Its popularity has surged in recent years.

Platinum and Alternative Metals

Beyond gold, other metals offer unique characteristics.

Platinum: Known for its durability, hypoallergenic properties, and pure white colour, platinum is a luxurious choice. It's heavier than gold but maintains its white luster without rhodium plating.
Sterling silver: A classic choice and is generally hypoallergenic and offers a timeless elegance.
Alternative Metals: For those seeking something different, consider options like titanium, tungsten, or stainless steel. These metals are often more affordable than traditional precious metals.

Ultimately, the ideal metal depends on your personal style, budget, and lifestyle.

Durability and Maintenance Considerations

The durability of a metal used for a diamond ring is a crucial factor influencing its longevity.

Some metals, like platinum and certain high-karat gold alloys, are inherently more resistant to scratches and dents. However, even the most durable metals can benefit from proper care.

Regular cleaning is essential to maintain the brilliance of both the metal and the diamond. A mild detergent solution and a soft-bristled brush can be used to gently clean the ring. Ultrasonic cleaners should be used with caution, as they can loosen the prongs that hold the diamond in place.

It's also advisable to remove the ring when engaging in activities that could subject it to harsh conditions, such as housework, gardening, or sports.

Hypoallergenic Options

For individuals with sensitive skin, certain metal alloys can cause allergic reactions. This is often due to nickel, a common component in many jewellery alloys. Platinum is an excellent choice for those with sensitive skin as it is naturally hypoallergenic. When selecting gold, look for high-karat options or those labelled as " nickel-free. " All Juvetti pieces are nickel-free, ensuring that our customers can enjoy their jewellery without concerns of allergic reactions.

It's important to note that even hypoallergenic metals can cause skin irritation in rare cases. If you have concerns, it's advisable to consult with a dermatologist or a jeweller specialising in hypoallergenic jewellery.

Ring Size Guide

Determining the correct ring size is crucial for ensuring a comfortable and flattering fit. If you’re going to give the ring to someone, you would want the ring to perfectly fit the wearer’s finger. To make that happen, here’s a guide to help you get the most accurate ring size.

Professional Sizing Methods

The most accurate way to determine ring size is by visiting a jeweller. They have specialised tools and expertise to measure your finger precisely. Factors like finger shape, knuckle size, and desired fit can influence the final measurement.

At-Home Sizing Techniques

If visiting a jeweller isn't possible, there are at-home methods, although they may not be as precise. You can use a ring sizer, which is a tool with various ring sizes. Alternatively, you can wrap a piece of string or thread around your finger, mark the overlap, and measure the length against a ruler. Keep in mind that these methods may require some trial and error.

Considerations for Different Ring Styles

Some ring styles, such as those with thick bands or intricate designs, may require a slightly larger size for a comfortable fit. It's advisable to try on different styles to determine the best size for your desired ring.

Tip for Secret Ring Sizing

If you're planning a surprise, consider borrowing a ring that the recipient regularly wears on their desired finger. Take this ring to a jeweller to determine its size. Remember, fingers can vary slightly in size throughout the day, so consider measuring in the afternoon when fingers tend to be slightly larger.

Important! Ensure the borrowed ring is not a sentimental piece that would be missed if it goes missing.

Where to Buy Lab-Grown Diamond Rings

With the increasing popularity of lab-grown diamonds, there are various options for purchasing your ring. So, where to buy one that sells legit lab grown diamond rings?

Online Retailers Specialising in Lab-Grown Diamonds

Online retailers like Juvetti offer convenience, a wide selection, and often competitive prices. They specialise in lab-grown diamonds, providing detailed information about the stones and offering various customization options. These retailers often have user-friendly websites that allow customers to filter diamonds by carat, cut, colour, and clarity, making the shopping experience personalised and efficient.

Furthermore, they typically provide diamond certificates, high-resolution images and 360-degree videos of their diamonds, ensuring transparency and helping customers make informed decisions. Online retailers may also offer educational resources about lab-grown diamonds, explaining their benefits and differences from natural diamonds. Many provide flexible payment options, financing plans, and generous return policies to enhance customer satisfaction and confidence in their purchases.

Traditional Brick-and-Mortar Jewelers

Many traditional jewellers have expanded their offerings to include lab-grown diamond rings alongside their natural diamond collections. Visiting a physical store provides a unique opportunity to personally examine and try on rings, allowing customers to appreciate the craftsmanship and sparkle firsthand.

Juvetti offers both an online and brick-and-mortar shopping experience, providing customers with the flexibility to explore their collection at their convenience. Please note that we have now relocated our store to 49 Marylebone Lane, London W1U 2NT, United Kingdom. Our current location near Liverpool Street (Spitalfields Market) offers order pick-up and by-appointment viewings, open 7 days a week.

Customization Services and Bespoke Options

Some jewellers including Juvetti offer customisation services, allowing you to create a unique ring with your preferred diamond, metal, and setting. Bespoke options provide even greater control over the design process, creating a truly personalised piece.

Online vs In-Store Purchasing

The decision to purchase a lab-grown diamond ring online or in-store depends on individual preferences and priorities. Both options offer distinct advantages.

Online shopping provides unparalleled convenience and access to a vast selection of lab-grown diamonds. Consumers can browse through numerous options at their leisure, compare prices and specifications, and often benefit from exclusive online promotions. Additionally, online retailers may offer detailed product information, including high-resolution images and video presentations, allowing for thorough examination.

Traditional brick-and-mortar jewellery stores provide a tactile experience, enabling customers to physically inspect the diamond and try on different ring styles. Expert jewellers from London can offer personalised guidance on selecting the perfect ring, considering factors such as skin tone, hand shape, and personal style. Moreover, in-store purchases often come with additional services, such as resizing, cleaning, and repair.

Many consumers now combine online and in-store shopping for a seamless experience. Researching options online allows customers to narrow down their choices before visiting a physical store to try on selected rings. Some retailers offer click-and-collect services, enabling customers to purchase online and pick up their order in-store for a personalised experience.

For those considering the investment potential of gemstone jewellery, lab-grown diamonds are great choice combining ethical sourcing with financial benefits.

Questions to Ask Jewellers

Asking the right questions when purchasing a lab-grown diamond ring is essential for making an informed decision. Here are some key areas to focus on:

Origin and Certification of Lab-Grown Diamonds

Where do your lab-grown diamonds originate?
Can you provide certification for the lab-grown diamonds?
What specific grading reports do you offer (e.g., GIA, IGI)?
How do you ensure the ethical sourcing of materials used in the lab-grown diamond creation process?

Setting and Customization Options

What are the different setting styles available for lab-grown diamonds?
Can you customise a ring to my specific design preferences?
What metal options do you offer for the ring setting?
Can you explain the difference between various gold karats (e.g., 14k, 18k)?

After-Sales Services and Policies

What kind of warranty or guarantee do you offer on lab-grown diamond rings?
Do you provide resizing, cleaning, and repair services?
What is your return and exchange policy?
How do you handle insurance for the ring?

By asking these questions, you can gather essential information to make a confident and informed purchase.

How to Spot a Quality Lab-Grown Diamond

Just like natural diamonds, the quality of lab-grown diamonds varies. Here's how to identify a high-quality stone.

Visual Indicators of Quality

The Four Cs: While the same principles apply to both natural and lab-grown diamonds, understanding the cut, colour, clarity, and carat weight is essential. A well-cut diamond maximises brilliance, while higher colour and clarity grades often indicate better quality.

Inclusions: Even high-quality lab-grown diamonds may contain inclusions, but they should be minimal and difficult to see with the naked eye.

Brilliance and Fire: A quality lab-grown diamond should exhibit exceptional brilliance and fire, just like a natural diamond. Look for the stone's ability to reflect light and disperse it into a rainbow of colours.

Using Technology to Evaluate Lab-Grown Diamonds

Certification: A reputable grading report from a recognized laboratory (GIA, IGI, etc.) is crucial. The certificate provides detailed information about the diamond's characteristics.

Gemological Instruments: Jewellers use specialised equipment to assess a diamond's quality, including microscopes, spectrometers, and other advanced tools.

Online Resources: Many online retailers provide detailed information about their lab-grown diamonds, including images, videos, and grading reports.

Common Misconceptions About Lab-Grown Diamond Quality

Lab-grown diamonds are inferior: This is a common misconception. High-quality lab-grown diamonds are indistinguishable from natural diamonds in terms of physical and optical properties.

All lab-grown diamonds are the same: Just like natural diamonds, lab-grown diamonds vary in quality based on the four Cs.

By understanding these factors and relying on reputable sources, you can confidently select a high-quality lab-grown diamond and make a lasting, worthy investment that can be worn.

Common Mistakes to Avoid

Understanding common pitfalls can help you make a more informed decision when purchasing a lab-grown diamond ring. Here are some you must know:

Overlooking Certification and Origin

One of the most critical mistakes is neglecting to verify the diamond's certification and origin. A reputable grading report from a recognized laboratory (GIA, IGI, etc.) guarantees the diamond's quality and authenticity. Additionally, understanding the diamond's origin can provide insights into its ethical production process.

Focusing Solely on Carat Weight

While carat weight is a significant factor, it shouldn't be the sole determinant of a diamond's value. The cut, colour, and clarity of the diamond also significantly impact its brilliance and overall appearance. A smaller diamond with an excellent cut can often appear larger and more dazzling than a larger diamond with a poor cut.

Neglecting to Consider Long-Term Wear and Maintenance

Choosing a ring without considering its durability and care requirements can lead to disappointment. Opt for a metal that suits your lifestyle and budget, and be prepared to invest time in cleaning and maintenance to preserve the ring's lustre.

If you avoid these common mistakes, you can make a more informed and satisfying purchase.

With so many lab grown diamond rings available in the market, picking the best one can be daunting. It involves careful consideration of several factors. By following this guide, you can make an informed and satisfying purchase.

Here’s a Recap of Key Considerations When Buying a Lab-Grown Diamond Ring

The Four Cs: Cut, colour, clarity, and carat weight are fundamental to evaluating a diamond's quality.
Certification and Grading: A reputable grading report from a recognized laboratory is essential.
Diamond Shape and Setting: Consider your personal style and hand shape when choosing a diamond shape and setting.
Metal Options: Select a metal that suits your preferences for durability, appearance, and budget.
Ring Size: Accurate sizing is crucial for a comfortable fit.
Online vs. In-Store Purchasing: Weigh the benefits of convenience and selection against the in-person experience.
Budget: Determine a realistic budget and prioritise factors that align with your preferences.
After-Sales Service: Consider the jeweller's warranty, repair, and cleaning policies.

Frequently Asked Questions About Lab-Grown Diamonds

What is the best colour grade for lab-grown diamonds?

The best colour grade for a lab-grown diamond depends on personal preference. However, colourless or near-colourless diamonds (grades D-F) are generally considered the most desirable.

Are lab-grown diamonds worth anything?

Yes, lab-grown diamonds have value. While their resale market is still developing, their worth is influenced by factors like carat weight, cut, colour, clarity, and certification.

Will lab diamond rings last forever?

With proper care, lab-grown diamond rings can last as long as natural diamond rings. They possess the same hardness and durability.

Do lab-grown diamonds look fake?

No, lab-grown diamonds are real diamonds with the same physical and optical properties as mined diamonds. They have the same brilliance and fire.

Can you insure lab-grown diamond rings?

Yes, many insurance providers offer coverage for lab-grown diamond rings. It's essential to check with your insurer for specific policies and requirements.

Why would you buy a lab diamond ring?

There are several reasons to choose a lab-grown diamond ring: ethical considerations (as lab-grown diamonds have a smaller environmental impact), affordability, and the ability to find larger, higher quality stones.

Can lab diamonds pass a diamond tester?

Yes, lab-grown diamonds will pass a diamond tester because they possess the same physical properties as natural diamonds.

Does a lab-grown diamond ring lose shine over time?

Like any diamond, a lab-grown diamond may lose some shine over time due to normal wear and tear. However, regular cleaning and proper care can help maintain its brilliance.