Yes — Lab-grown diamonds are real diamonds. In gemological terms, a diamond is defined by its crystal structure and chemical composition, not by where it was formed. These lab-created diamonds are made of crystalline carbon, just like mined diamonds, and they share the same physical, chemical, and optical properties.
The primary difference between lab-grown and mined diamonds is origin, not appearance nor performance. One is grown in controlled laboratory conditions, while the other forms naturally deep within the Earth over millions of years.
What “Real Diamond” Means in Gemology
Gemologists consider a diamond “real” when carbon atoms arrange themselves in a specific crystal lattice. This structure gives diamonds their hardness, brilliance, and durability. Because diamonds grown in laboratory environments meet this definition, major gemological organizations recognize them as real diamonds.
Lab-grown diamonds do not fall into the category of simulants like cubic zirconia or moissanite. Those materials may resemble diamonds visually, but they contain different chemical compositions and physical properties. Lab-created diamonds, by contrast, qualify as diamonds in every scientific sense.
Lab-Grown vs. Mined Diamonds: What’s the Same and What’s Different
To the naked eye, lab-grown and mined diamonds look identical, and gemologists must use specialized equipment to distinguish between them. Grading laboratories evaluate both using the same criteria—cut, color, clarity, and carat weight—and both can vary widely in quality.
The difference lies in how each type forms.
- Nature creates mined diamonds under extreme heat and pressure deep within the Earth and later carries them to the surface through volcanic activity.
- Manufacturers grow lab-created diamonds in controlled environments that replicate these natural conditions, allowing the crystal structure to develop over weeks instead of geological time.
How Lab-Grown Diamonds Are Made
Manufacturers use two primary methods used to create diamonds in a lab environment:
High Pressure High Temperature (HPHT)
This method recreates the natural conditions of diamond formation by applying extreme heat and pressure to carbon. Scientists first developed HPHT technology in the 1950s, and the industry continues to use it today.
Chemical Vapor Deposition (CVD)
CVD begins with a small diamond “seed” placed inside a chamber filled with carbon-rich gas. When technicians introduce energy, carbon atoms bond to the seed and build the diamond layer by layer. This method gives manufacturers precise control over the growth process.
Both methods create diamonds with the same crystal structure and material properties as mined diamonds.
This video from the International Gemological Institute (IGI) explains both of these creation methods in greater detail.
Are Lab-Grown Diamonds Worth It?
Whether this type of diamond feels “worth it” depends on what the buyer values most.
At retail, laboratory-grown diamonds typically sell for less than mined diamonds of comparable size and quality because of differences in supply and production methods. However, the resale market and long-term pricing behavior can differ between lab-created and mined diamonds, so buyers should set expectations accordingly.
When evaluating value, it helps to separate:
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Purchase price (what you pay at retail)
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Resale value (what the market may offer later)
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Personal value (size, appearance, sourcing preferences)
No option is universally better—each serves different priorities.
Common Myths About Lab-Grown Diamonds
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Myth: Lab-grown diamonds are fake.
They are real diamonds, not imitations. -
Myth: Lab-grown diamonds are made from coal.
Diamonds form from carbon, but not from coal. Most natural diamonds formed far deeper in the Earth and long before coal deposits existed. -
Myth: Lab-grown diamonds are less durable.
Both lab-grown and mined diamonds have the same hardness and durability.
How to Decide Which Diamond Is Right for You
When choosing between laboratory-grown and mined diamonds, consider:
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Your budget and size preferences
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How important origin and sourcing are to you
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Expectations around long-term value
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Whether visual appearance or rarity matters more
Understanding these factors helps ensure you choose a diamond that aligns with your priorities, rather than assumptions.
Final Thoughts on Lab-Grown Diamonds
Lab-created diamonds qualify as real diamonds, defined by the same science and evaluated using the same standards as mined diamonds. The difference lies not in what they are, but in how they form. With accurate information, choosing between lab-grown and mined diamonds becomes a matter of preference — not legitimacy.
