Lab Grown vs Natural Diamonds. Which to Choose?
11-06-2025
Lab Grown Diamonds: Are They Real and Worth It?
Lab grown diamonds have recently gained attention as a more ethical and affordable alternative to mined diamonds. Yet, despite their growing popularity, many people remain uncertain about their authenticity and value.
In this article, we’ll compare lab grown diamonds vs. natural diamonds, exploring their composition, appearance, certifications, and overall pros and cons — so you can decide whether they’re the right choice for you.
What Are Lab Grown Diamonds?
A lab grown diamond, also known as a man-made or cultured diamond, is created in a controlled laboratory environment using advanced technology that replicates the natural conditions under which diamonds form.
Two main methods are used to produce them:
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Chemical Vapor Deposition (CVD)
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High Pressure High Temperature (HPHT)
Just like mined diamonds, lab grown diamonds are composed of pure carbon atoms arranged in a crystalline structure. They share the same physical, chemical, and optical properties as natural diamonds — including a 10 rating on the Mohs hardness scale — and can even be certified by the Gemological Institute of America (GIA).
Lab Grown Diamonds vs. Natural Diamonds: Are They Real?
One of the most common questions about lab created diamonds is whether they’re real. The short answer is yes — absolutely.
Lab grown diamonds are chemically and physically identical to natural diamonds. The only key difference is their origin: natural diamonds form deep within the Earth over billions of years, while lab grown ones form in weeks under controlled conditions.
Interestingly, lab grown diamonds tend to be purer, as they usually lack the trace elements (such as nitrogen) that can be found in natural stones. Despite this minor distinction, both types display the same brilliance, clarity, and sparkle — differences visible only under specialized gemological equipment.
In fact, the Federal Trade Commission (FTC) officially recognized lab grown diamonds as real diamonds in 2018.
Lab Grown Diamonds vs. Diamond Simulants
A common misconception is that lab grown diamonds are the same as diamond simulants, such as moissanite or cubic zirconia. However, this is not true.
While simulants only imitate the appearance of diamonds, they do not share the same composition or properties. Simulants lack carbon crystal structures, have different hardness levels, and often display a different type of sparkle that looks more glassy or rainbow-like.
Lab grown diamonds, on the other hand, are true diamonds. They can pass standard diamond tests for thermal conductivity, UV fluorescence, and optical performance, producing results identical to those of natural diamonds.
Are Lab Grown Diamonds Certified?
Yes — lab grown diamonds can be certified just like natural ones. Reputable organizations such as the Gemological Institute of America (GIA) and the International Gemological Institute (IGI) grade lab grown diamonds according to the 4Cs: color, clarity, cut, and carat weight.
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The GIA uses the same rigorous process for grading lab grown and mined diamonds, noting details about the growth method (CVD or HPHT) on the report.
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The IGI also provides certification, including a laser inscription on the diamond’s girdle indicating that it is lab grown.
These certifications ensure transparency, quality, and peace of mind for buyers.
Advantages of Lab Grown Diamonds
Now that we’ve confirmed their authenticity, let’s explore why so many buyers are choosing lab grown diamonds.
1. More Affordable
Lab grown diamonds typically cost 30–50% less than mined diamonds of comparable quality. This price difference comes from the simplified, faster production process — no mining, fewer middlemen, and greater efficiency. As a result, shoppers can often afford larger carat sizes or higher quality grades for the same budget.
2. Ethically and Environmentally Responsible
Mining natural diamonds can have a significant environmental and social impact, including habitat disruption and high carbon emissions.
Lab grown diamonds are a more sustainable and ethical choice. They require less water, produce fewer greenhouse gases, and can be traced transparently from creation to purchase. Their production process avoids many of the ethical concerns associated with traditional diamond mining.
3. Greater Customization
Lab grown diamonds can be created in a wide range of colors, such as pink, yellow, or blue — shades that are extremely rare and expensive in natural diamonds.
They also offer more flexibility in cut and size customization, making them an ideal choice for personalized jewelry designs and one-of-a-kind engagement rings.
Disadvantages of Lab Grown Diamonds
While lab grown diamonds offer many benefits, they do come with a few considerations.
1. Lack of Natural Rarity
Natural diamonds take millions of years to form and are available in limited supply, which contributes to their prestige and allure. Lab grown diamonds, however, can be produced quickly and in large quantities, making them less rare and, for some collectors, less emotionally significant.
2. Lower Long-Term and Resale Value
Because lab grown diamonds can be reproduced indefinitely, they lack scarcity, which affects their resale value.
In contrast, natural diamonds are finite and tend to hold or even increase in value over time. For buyers who view jewelry as an investment, mined diamonds generally remain the more attractive option.
Conclusion
Whether in an engagement ring, pendant, or bracelet, lab grown diamonds carry the same sparkle, brilliance, and symbolism as natural ones. They offer an ethical, customizable, and budget-friendly option for those who value sustainability and style.
However, the choice ultimately depends on what matters most to you.
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If you’re drawn to eco-conscious practices, affordability, and customization, lab grown diamonds are a perfect fit.
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If you value rarity, tradition, and long-term investment, natural diamonds may better suit your preferences.
At Milke’s Jewelers, we proudly offer both lab grown and natural diamond jewelry, each crafted with exceptional precision and beauty.
Explore our collection today and find the perfect piece to celebrate your most meaningful moments.