For centuries, diamonds have been the ultimate symbol of luxury. But now, lab-grown diamonds are changing the game, and they've brought a lot of questions with them. If you're considering one, you want to know exactly what you're getting. A big question on everyone's mind is, are lab grown diamonds marked to distinguish them from natural ones? It's a smart thing to ask. In this guide, we'll cover that and also look into the fascinating history of lab grown diamonds and the science behind how these gems are made.
The biggest question in regard to a lab-grown diamond is whether the diamond is real or not. The answer is a resounding yes, and lab-grown diamonds prove to be genuine for various reasons.
How Are Natural Diamonds Made?
The first diamonds are estimated by scientists to have been formed around three billion years ago, deep in the earth’s crust. However, diamonds were not discovered by humans until the fifteenth century in India.
Quickly becoming a precious commodity, diamonds were worn by India’s wealthy class. With any precious and rare resource, there exists a limited quantity. Therefore, wealthy classes throughout history have donned diamonds because of their rarity and limited quantities.
Thanks to medieval markets in Europe, diamonds made their way to the jewelry of the European elite. Unfortunately, due to high demand and low supply, diamonds in Europe became more difficult to locate and purchase. With the rise in interest in discovering diamonds, the country of Brazil quickly rose to be the main supplier of natural diamonds when miners discovered the precious gem while searching for gold. For 150 years, Brazil became the dominant supplier of natural diamonds.
The popularity of diamonds fell with the structure of France during the French Revolution in the eighteenth century when the ruling class declined and distribution of wealth increased. However, history repeated when diamonds were discovered in South Africa in the 19th century, and diamonds rose to fame once again. The discovery of diamonds in South Africa marked the beginning of the modern diamond industry.
With time, diamond mining moved further underground, and with its move came advancements in technology as well as the progression and refinement of the booming diamond industry. This progression and refinement was marked by more efficient mining methods and diamond refinement as well. In the 19th century, the production of natural diamonds was under one million carats.
By the 1990s, the production of natural diamonds shot up to over 100 million carats due to the steadily increasing discovery of diamond hot spots. These discoveries were the product of deep research and study into the origin and formation of diamonds which allowed scientists to predict where in the world diamonds were forming.
How Earth Creates a Diamond
Diamonds require one element to be formed, and this element is carbon. Pure carbon is a dull, nonmetal element that can be compared to the appearance of graphite, a different form of carbon. How can a dull gray material turn into a clear, radiant diamond? The critical components of diamond formation are heat, pressure, and magma.
The process of diamond formation begins deep under the earth’s crust. Immense heat and pressure cause carbon atoms to crystallize, forming a diamond. If a diamond is formed miles under the ground, then how are diamonds brought to the surface? The answer is magma.
In addition to diamonds, magma is also found deep under the earth’s surface. Magma is a molten natural material that is commonly known to erupt from volcanoes. When a diamond is formed, the heat under the earth’s surface causes magma to erupt, and the newly formed diamonds travel in the magma.
Because the magma travels at a high speed, it naturally follows a path of little resistance. This phenomenon causes pathways for magma to pass through known as “pipes” to form where the diamonds travel.
Because natural diamond formation is not guaranteed to be consistent, not every diamond is a gem-quality diamond. Some diamonds are too small, and some diamonds have too many blemishes and inclusions. Inclusions are blemishes in diamonds that affect their clarity and transparency.
One in 200 pipes actually carries gem-quality diamonds. This inconsistency has led to issues in the production and distribution of diamonds which has increased the need for the discovery of more areas where diamonds are formed.
When Was the First Lab-Grown Diamond Created?
With the time-defying popularity and demand for diamonds, natural diamond production ebbed and flowed. Because natural diamond formation was inconsistent, it was difficult to produce large, gem-quality diamonds in order to keep up with the demand for the precious gem. The solution to this problem was the lab-grown diamond.
In order to create a lab-grown diamond, scientists needed to thoroughly and deeply research the natural formation of diamonds. Though seemingly simple, the natural formation of diamonds requires the correct amount of heat and pressure, a natural process that was difficult to replicate.
When the key component of diamonds, carbon, was discovered in the late eighteenth century, scientists were scrambling to create the perfect, lab-grown diamond. Unfortunately, none of these individuals were successful in replicating the process that, at that time, only nature was able to create and perfect.
The year 1954 marked perhaps the biggest turning point in the diamond industry when General Electric Company created the first lab-grown diamond. General Electric Company conducted this project under the name “Project Superpressure” for obvious reasons.
The process of creating these diamonds involved a high-pressure belt press that dissolved graphite in different types of metals. These diamonds were confirmed to be genuine when they broke the scientists’ metal instruments.
Though a historically significant invention, these lab-made diamonds were not gem-quality. Gem-quality diamonds are of proper size and clarity. Unfortunately, many of these diamonds were far too small and had a yellow hue, rendering them essentially useless. Thanks to the advancement in technology, research, and time, diamonds made in labs were made with better size and clarity and exceeded the quality of many naturally-formed diamonds.
How Are Lab-Grown Diamonds Made Today?
There are two main methods of creating lab-grown diamonds: high-pressure high-temperature process, and chemical vapor deposition. Chemical vapor deposition is a more common method of growing diamonds, but the high-pressure high-temperature process is valuable as well.
At Eterneva, this process is used to create a remarkable diamond to remember your loved one. Eterneva uses a custom seven-stage process to create the diamond that best represents your loved one.
- The first stage involves your Welcome Kit where you are given everything needed to send us your loved one’s ashes (or hair) to begin the process of creating their diamond. This kit includes a personalized welcome video message, return postage, instructions, and a secure container for the ashes and/or hair.
- The second stage involves purifying your loved one’s ashes to the key component to creating a diamond: carbon. Though carbon exists in a person’s ashes, it requires ample time to extract this element. The result is carbon graphite powder.
- The third and most intricate stage is when your loved one’s ashes are transformed into an incredible diamond. This process takes between two to three months where the natural diamond forming process is replicated. The reason for this lengthy process is due to the unique structure of your loved one’s ashes. Each person’s ashes are different, and our scientists use this uniqueness to create a diamond with the most optimal amount of heat and pressure.
- Stage four is where we thoroughly assess the quality of your new diamond. The raw diamond is tested for clarity and overall quality. Because we know how valued your loved one is, we take the necessary time to ensure that your diamond is of the highest quality possible.
- Once your diamond passes the test, the fifth stage commences. A master cutter will cut your diamond into a shape that will beautifully reflect light and create a masterpiece.
The sixth and seventh stages of the seven-stage journey to your perfect diamond are known as the finishing touches. These stages include coloration (based on your selection), grading and engraving the diamond, and setting the diamond in a custom jewelry piece.
We know that the time spent with your loved one was, and is, precious, and we take the time to create the highest quality diamond possible so that you know how much we value your loved one and you as well.
How to Tell the Difference Between Lab-Grown and Natural Diamonds
Because lab-grown and natural diamonds are chemically and physically identical, telling them apart isn’t a simple task. There are no obvious visual cues, and it takes the trained eye of a gemologist with highly specialized equipment to determine a diamond’s origin. While this might seem tricky, it’s actually a testament to the quality and authenticity of lab-grown diamonds—they are so perfectly real that they are indistinguishable from their mined counterparts without scientific analysis.
Visual Inspection: Can You See a Difference?
If you place a lab-grown diamond next to a natural one of the same quality, you won’t be able to see a difference. They sparkle the same, have the same hardness, and reflect light in the exact same way. The only potential visual clue is a tiny, laser-etched inscription on the diamond's girdle (its thin outer edge). Some lab-grown diamonds are inscribed with letters like "LG" to identify their origin, but this is so small it can only be seen under a microscope. Not all lab diamonds have this inscription, so its absence doesn't prove anything. The bottom line is that to the naked eye, they are one and the same.
Scientific Testing Methods
Since a simple look won't do, gemologists turn to science. The unique conditions under which diamonds form—either deep within the Earth or in a controlled lab—leave behind microscopic clues. These subtle differences in their atomic structure and chemical composition are like a birth certificate, revealing how and where the diamond was created. Scientists use advanced tools to look for these specific markers, which are completely invisible otherwise.
Nitrogen Content
One of the biggest giveaways is the presence of nitrogen. Natural diamonds form over billions of years in the earth, where nitrogen is a common element. Tiny amounts of nitrogen often get trapped inside the diamond’s crystal structure as it grows. In contrast, lab-grown diamonds are created in a tightly controlled environment that is free of nitrogen, resulting in a chemically purer diamond. Gemologists can detect these trace amounts of nitrogen to help identify a diamond as natural.
Growth Patterns and Flaws
The way a diamond grows also leaves behind a distinct pattern. Natural diamonds form under fluctuating pressure and temperature, leading to more irregular, organic growth patterns. Think of it like a tree growing in the wild. Lab-grown diamonds, however, are created in a steady, controlled process. This results in specific, uniform growth patterns that can be identified with magnification. These patterns are not flaws, but rather unique structural details that point to the diamond's origin.
UV Light Test
Another method involves observing how a diamond reacts under ultraviolet (UV) light. Many natural diamonds contain the element boron, which causes them to glow blue when exposed to a UV lamp—a phenomenon called fluorescence. Lab-grown diamonds created with either the HPHT or CVD method typically do not contain boron and therefore don't glow blue. While this test can be a helpful indicator, it's not definitive on its own, as not all natural diamonds fluoresce.
Specialized Gemological Equipment
Ultimately, distinguishing a lab-grown diamond from a natural one requires advanced technology found only in gemological laboratories. Most local jewelers don't have this equipment and often rely on finding a laser inscription to identify a lab-grown stone. This is why certification from a reputable lab is so important. At Eterneva, we are committed to complete transparency, and every memorial diamond we create is a genuine, high-quality diamond. We uphold the strictest standards and validation to ensure the diamond honoring your loved one is as real and remarkable as the life it represents.
Are Lab-Grown Diamonds Real Diamonds?
Yes, absolutely. Lab-grown diamonds are not fakes, imitations, or simulants—they are 100% real diamonds. They have the exact same chemical makeup, crystal structure, and optical properties as diamonds that are mined from the earth. The only thing that makes them different is their origin. One was formed by nature over billions of years, and the other was created by science in a matter of months. Think of it like the difference between a wild orchid and one grown in a greenhouse; they are both orchids.
Lab-Grown Diamonds vs. Diamond Simulants
It's important not to confuse lab-grown diamonds with diamond simulants. Simulants are stones that are made to *look* like diamonds but are composed of entirely different materials. Common examples include cubic zirconia (CZ) and moissanite. While they can be sparkly, they don't have the same hardness, brilliance, or chemical properties as a real diamond. A lab-grown diamond is chemically identical to a natural diamond (pure, crystallized carbon), whereas a simulant is not. This is why a lab-grown diamond will last forever, just like a natural one, while a simulant can become scratched or cloudy over time.
What a Standard Diamond Tester Reveals
One of the simplest ways to confirm that a lab-grown diamond is real is with a standard diamond tester. These handheld devices are used by jewelers to quickly check if a stone is a genuine diamond. The tester works by measuring how quickly heat moves through the stone. Diamonds are excellent thermal conductors, so heat passes through them rapidly. When you touch the tip of a tester to a lab-grown diamond, it will beep and light up, confirming that it is, in fact, a diamond. This same tool would easily identify a simulant like cubic zirconia as a fake, because CZ does not conduct heat in the same way. Every memorial diamond we create passes this test because it is a true diamond, born from the carbon of your loved one.
Are Lab-Grown Diamonds Marked?
At Eterneva, we replicate the natural diamond forming process with care, precision, and your interests in mind. Eterneva is dedicated to the humane and ethical production of personal, hand-crafted diamonds that make amazing memorial jewelry that will carry on the memory of the one you love for a lifetime.
Sources
Diamond History and Lore | GIA
A Brief History of Lab-Grown Diamonds | Gem Society
What are 'conflict diamonds?' | CNN
Laser Inscriptions on the Girdle
One of the most common ways to identify a lab-grown diamond is through a microscopic laser inscription. Jewelers and gemologists place this tiny marking on the diamond's girdle, which is the thin outer edge that separates the top of the diamond from the bottom. This inscription is invisible to the naked eye and requires a jeweler's loupe to see. It often includes letters that identify it as lab-grown, such as "LG," followed by a unique serial number that corresponds to its grading report. This practice ensures complete transparency about the diamond's origin, allowing you to know exactly what you are purchasing.
Grading Reports and Documentation
Just like mined diamonds, high-quality lab-grown diamonds come with official documentation. A reputable lab-grown diamond will be accompanied by a grading report from an independent gemological laboratory, such as the Gemological Institute of America (GIA) or the International Gemological Institute (IGI). This report provides a comprehensive analysis of the diamond's characteristics, including its cut, color, clarity, and carat weight. Crucially, the report will explicitly state that the diamond is "laboratory-grown" or "laboratory-created," leaving no room for confusion. This documentation is your assurance of the diamond's quality and origin, so be wary of any seller who cannot provide it.
How Eterneva Documents Your Memorial Diamond
At Eterneva, we believe that transparency is a core part of the healing process. Your loved one's memorial diamond journey is meticulously documented from start to finish. Once the diamond is grown and cut, it is sent for independent grading and certification. We also offer a personal touch by engraving a microscopic inscription of your choice on the girdle—a name, a date, or a special message. This ensures your diamond is not only certified but also uniquely yours. This commitment to our standards and transparency means you receive a beautiful, authentic diamond and the peace of mind that comes with a fully documented and personal journey.
Cost and Value of Lab-Grown Diamonds
When considering a diamond, it's natural to think about its cost and long-term value. Lab-grown diamonds present a different value proposition compared to their natural counterparts. Because the creation process is more efficient and less resource-intensive than mining, lab-grown diamonds are typically more affordable. This accessibility allows more people to own a beautiful, real diamond. However, it's also important to understand how their value behaves in the market over time, as it differs from the traditional trajectory of natural diamonds. The financial aspect is just one piece of the puzzle; for many, the personal and sentimental value far outweighs any market fluctuations.
Price Comparison with Natural Diamonds
The most significant financial difference between lab-grown and natural diamonds is the price. Lab-grown diamonds generally cost considerably less than natural diamonds of the same size and quality. This price difference means you can often choose a larger or higher-quality lab-grown diamond for the same budget you would have for a smaller natural one. The controlled environment of a lab allows for a more predictable supply, which helps keep costs down compared to the intensive and often unpredictable process of mining diamonds from the earth. This makes lab-grown diamonds an attractive option for those who want the brilliance of a real diamond without the premium price tag.
Market Trends and Resale Value
The market for lab-grown diamonds is still evolving. As technology improves and production becomes more widespread, the supply of lab-grown diamonds has increased, causing their prices to decrease over time. Consequently, their resale value is typically lower than that of natural diamonds and may continue to adjust as the market matures. While this is an important factor for investment purposes, the value of a pet memorial diamond or one made from a loved one's ashes is not measured in market trends. Its worth is rooted in the priceless connection it represents—a value that is personal, permanent, and will never fade.
Consumer Perceptions and Regulations
The conversation around lab-grown diamonds involves more than just science and cost; it also includes consumer perceptions and the regulations that ensure transparency. As lab-grown diamonds have become more popular, clear guidelines have been established to protect consumers and maintain trust in the jewelry industry. People choose lab-grown diamonds for a variety of reasons, from ethical considerations to the desire for a more personalized stone. Understanding both the rules that jewelers must follow and the motivations behind consumer choices provides a fuller picture of the role these remarkable gems play today.
FTC Guidelines for Jewelers
To ensure consumers are fully informed, the Federal Trade Commission (FTC) has established clear guidelines for selling lab-grown diamonds. In the United States, jewelers are legally required to disclose whether a diamond is lab-created. This means using clear language like "laboratory-grown," "laboratory-created," or "[manufacturer name]-created" to describe the diamond. These rules prevent misleading advertising and ensure you know the origin of your gemstone. This level of required transparency helps build confidence and allows you to make a purchase decision based on accurate and honest information, which is a standard we wholeheartedly support.
Why People Choose Lab-Grown Diamonds
People are drawn to lab-grown diamonds for many reasons. Some prefer them because they are seen as a more environmentally conscious choice, as they don't require large-scale mining operations. For others, the lower price point is the main attraction. But for many, the most compelling reason is the opportunity for personalization. The ability to create a diamond from something as personal as ashes or hair transforms it from a beautiful stone into a profound symbol of connection and remembrance. This is especially true for those creating a living diamond to celebrate a life, turning a personal element into an heirloom that tells a unique and powerful story.
Frequently Asked Questions
Can a jeweler tell my diamond is lab-grown just by looking at it? No, they can't. Lab-grown diamonds are physically and chemically identical to natural diamonds, so even a trained professional can't spot a difference with the naked eye or a standard jeweler's loupe. They have the same sparkle, hardness, and brilliance. The only way to determine a diamond's origin is with specialized laboratory equipment that can detect subtle differences in growth patterns or trace elements.
Why does it take months to create a memorial diamond? Creating a diamond from your loved one's ashes is a highly personal and precise process that we refuse to rush. The timeline reflects the meticulous care we take at every stage. First, we purify the carbon from the ashes, a delicate step that is unique to each individual. Then, the diamond growth phase itself takes several weeks to replicate the earth's natural process, ensuring a high-quality, authentic diamond forms. Each step is about honoring a unique life, not mass production.
Will my Eterneva diamond be marked as lab-grown? Yes, transparency is very important to us. Your memorial diamond will come with a grading report from a third-party gemological lab that clearly states its laboratory origin. We also offer the option to add a microscopic laser inscription on the diamond's girdle. While some people choose the report number, many use this to engrave a name, date, or a private message, making the diamond even more personal.
Is a memorial diamond less valuable than a natural diamond? When it comes to market price, lab-grown diamonds are more affordable than natural diamonds of the same quality. However, the value of a memorial diamond isn't measured by resale potential. Its true worth is deeply personal and sentimental. You are creating a one-of-a-kind heirloom that holds the story and memory of your loved one. That kind of value is priceless and doesn't change with market trends.
How do I know the diamond I receive is really from my loved one's ashes? We built our entire process around this question because we know it's the most important one. From the moment your Welcome Kit arrives, we begin a meticulous tracking and documentation journey. Every step is photographed and shared with you through personalized updates. This transparent process ensures a secure chain of custody, giving you complete peace of mind that the beautiful diamond you receive is a true and authentic tribute to your loved one.
Key Takeaways
- Lab-grown diamonds are chemically identical to natural ones: They are 100% real diamonds, sharing the same physical and optical properties as their mined counterparts. The only difference is their origin, which can only be confirmed using specialized gemological equipment.
- Identification is ensured through clear documentation: Reputable lab-grown diamonds come with official grading reports that explicitly state their origin. Many also have a microscopic laser inscription on the diamond's edge, providing complete transparency.
- The value is both practical and personal: While lab-grown diamonds are a more affordable option, their most important value, especially for a memorial diamond, is the personal connection it represents. This sentimental worth is permanent and isn't defined by market prices.
