Lab-Grown Diamonds vs. Natural Diamonds: The Differences
Diamonds have long been treasured for their brilliance, durability, and rarity, symbolizing enduring love and luxury. When searching for the perfect diamond, you may encounter two main options: natural diamonds and lab-grown diamonds.
Both possess the same remarkable beauty, but they differ in how they are created and, in some cases, how they are perceived. Let’s learn about the differences between lab-grown and natural diamonds to help you make a decision when selecting the right one for you.
Natural Diamonds
Natural diamonds, or real diamonds, are formed deep within the Earth over billions of years under extreme heat and pressure. The process begins with carbon atoms aligning in a crystalline structure, thus creating the diamond’s famous hardness and sparkle. These gemstones are then brought to the Earth’s surface by volcanic eruptions, where they can be mined and polished into the dazzling stones we know today.
Natural diamonds start their journey about 100 miles below the Earth’s surface. Over time, high temperatures (reaching up to 2,200 degrees Fahrenheit) and extreme pressures (up to 725,000 pounds per square inch) cause carbon atoms to bond in a specific way, forming diamond crystals. Each diamond is unique, with slight variations in color, clarity, and inclusions due to the natural environment in which it formed.
Natural diamonds are often considered rare and valuable due to the lengthy and unpredictable process of their creation. Their age and origin play a significant role in their desirability. People often choose natural diamonds for their timeless appeal, history, and unique characteristics that distinguish them from lab-grown alternatives.
Lab-Grown Diamonds
Lab-grown diamonds, also known as synthetic or man-made diamonds, are grown in a lab using advanced technology that mimics the natural formation process. The result is a diamond that is chemically, physically, and optically identical to natural diamonds. Lab-created diamonds have become increasingly popular due to their sustainability and affordability.
Lab-grown diamonds are typically produced in laboratories through one of two advanced methods:
- High Pressure-High Temperature (HPHT) involves placing carbon in a pressurized chamber and heating it to extreme temperatures, mimicking the conditions in the Earth’s mantle.
- Chemical Vapor Deposition (CVD) works by placing a carbon-heavy gas, such as methane, in a vacuum chamber and heating it until carbon atoms separate and form diamond crystals layer by layer.
Both methods result in diamonds that are virtually indistinguishable from natural ones when viewed under a microscope.
Lab-grown diamonds are often less expensive than natural diamonds because they do not require extensive mining and geological processes. They are also seen as a more environmentally friendly choice since their creation has a smaller carbon footprint. However, their resale value may be lower compared to natural diamonds, and some people prefer natural diamonds for their rarity and history.
5 Differences Between Lab-Grown and Natural Diamonds
When comparing lab-grown and natural diamonds, there are several key differences to keep in mind. While both types of diamonds share many similarities, their origins, price, and environmental impact set them apart in unique ways.
1. Origin
The primary difference between lab-grown and natural diamonds is their origin. Natural diamonds are created by natural geological processes deep within the Earth, while lab-grown diamonds are crafted in laboratories. Although the origins are different, the end products are almost identical in terms of appearance and structure.
2. Environmental Impact
Mining for natural diamonds can have negative environmental and social impacts. Large-scale diamond mining can disrupt ecosystems, require large amounts of water, and produce substantial waste. Lab-grown diamonds are considered more eco-friendly since they are produced in controlled environments without the need for mining, leading to a reduced environmental footprint.
3. Price
Lab-grown diamonds are usually more affordable than natural diamonds of the same quality. On average, lab-grown diamonds can cost 20-40% less than natural diamonds, making them an attractive option for budget-conscious shoppers. However, the lower price point does not necessarily reflect a difference in quality—both types of diamonds are visually and chemically identical.
4. Rarity and Resale Value
Natural diamonds are considered rare, which can affect their value over time. Their limited supply, formed over billions of years, contributes to their appeal and higher resale value. Lab-grown diamonds are more readily available and, as a result, may not hold the same rarity or long-term value. For those looking at diamonds as an investment, natural diamonds may be the preferred choice.
5. Ethical Considerations
In recent years, ethical concerns in sourcing diamonds have become a major consideration for consumers. Natural diamonds can sometimes be associated with conflict or unethical mining practices. Lab-grown diamonds, on the other hand, are guaranteed to be conflict-free since they are made in labs. For those concerned with ethical sourcing, lab-grown diamonds are the way to go.
Diamond Tests: Lab Diamonds vs. Real Diamonds
When trying to determine whether a diamond is real or fake, there are several at-home tests that can help provide clues about its authenticity. For example, one simple test is the fog test, which involves breathing on the diamond. Real diamonds disperse heat quickly and won’t retain fog, while imitations like glass or cubic zirconia may remain misted for several seconds.1
The best way to conclusively identify whether a diamond is real is by taking it to a jeweler for professional testing. A jeweler will use specialized tools, like a diamond tester, which measures thermal and electrical conductivity, distinguishing real diamonds from imitations like moissanite or cubic zirconia. For lab-grown diamonds, which have the same properties as natural diamonds, advanced tests in a gemological lab are required to determine their origin.1
3 Considerations for Choosing Diamonds

Buying lab-grown and natural diamonds involves more than just price and appearance. It’s important to consider factors like quality, design, and personal values when making your decision.
1. Quality and Grading
Both lab-grown and natural diamonds are graded based on the 4Cs—cut, color, clarity, and carat. Whether natural or lab-grown, diamonds are subject to the same grading criteria, ensuring consistent quality and standards across both types.
The Gemological Institute of America (GIA) International Diamond Grading System is the universal language for diamond clarity grades. This makes it easy for consumers to compare diamonds based on these universally accepted parameters.2
2. Innovation and Design
Lab-grown diamonds open the door to more possibilities in the diamond industry. With advancements in technology, it’s now easier to create diamonds in specific shapes and sizes that may not be as readily available with natural diamonds. This flexibility in design has attracted jewelry designers and consumers alike, seeking more unique and customizable options.
3. Personal Preference
Ultimately, choosing between lab-grown and natural diamonds often comes down to personal preference. Some buyers feel drawn to the natural history and mystique behind a naturally formed diamond, while others appreciate the modern innovation and environmental considerations behind lab-grown options. Either way, the choice is deeply personal and can reflect your values and priorities.
Which Should You Choose?
The decision between lab-grown and natural diamonds depends on your personal values, budget, and preferences.
If you value rarity, tradition, and the unique history that comes with a gemstone formed deep within the Earth, a natural diamond may be the best option for you. These diamonds often carry a sense of prestige and permanence.
If you are looking for a more affordable and eco-friendly option without sacrificing quality, a lab-grown diamond may suit your needs. Lab-grown diamonds provide the brilliance and beauty of natural diamonds at a fraction of the cost and are an excellent choice for those prioritizing sustainability.
Find Your Perfect Diamond With The Diamond Vault
Whether you choose a natural or lab-grown diamond, you’re investing in a gemstone that symbolizes love, commitment, and beauty. Both options offer stunning brilliance, durability, and elegance, allowing you to find the perfect diamond for any occasion.
At The Diamond Vault, we offer a wide selection of diamonds, engagement rings, and bridal sets to suit your needs. Explore our website or come by our Arizona showroom to explore our collection and find the diamond that’s right for you.
For more information or personalized assistance, contact The Diamond Vault to discover our full selection of diamonds.
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