Is a Lab-Grown Diamond a Real Diamond?
Differences Between Natural and Lab-Grown Diamonds
by Berkay
0 comments
Are these diamonds truly “real”? In terms of chemical structure, appearance, brilliance, and usage, are there any real differences between lab-grown diamonds and natural diamonds mined from the earth? These questions are frequently raised by both consumers and industry professionals. In this article, we compare these two types of diamonds from both scientific and commercial perspectives, highlighting their similarities and differences.
1. Definition: What Is a “Real” Diamond?
A diamond is a mineral composed entirely of carbon atoms, formed under extreme pressure and temperature conditions, and known as the hardest natural material on Earth. Its unmatched brilliance has made it one of the most valued stones in the jewelry world. Whether a diamond is considered “real” largely depends on its origin — how it was formed.
- Natural Diamond: Formed over millions of years deep within the Earth’s crust through natural geological processes.
- Lab-Grown Diamond: Created in a controlled laboratory environment by replicating the same chemical and physical conditions. These diamonds also form through the crystallization of carbon atoms and thus possess the exact same structure as natural diamonds.
Both are classified as diamonds and evaluated by international gemological laboratories using the same standards.
2. Scientifically Speaking: Same Substance, Same Sparkle
Lab-grown diamonds are identical to natural diamonds in:
- Chemical composition (C – carbon)
- Crystal structure (cubic system)
- Hardness (10 on the Mohs scale)
- Brilliance and refractive properties
Because of these identical properties, it is not possible to distinguish a lab-grown diamond from a natural one with the naked eye or an ordinary magnifying glass. Identification can only be done through advanced optical technologies, especially under ultraviolet light. These tests are typically conducted by international laboratories such as GIA, IGI, or HRD.
In recent years, however, significant developments have occurred in this field. In June 2025, Belgium’s renowned gemological laboratory HRD Antwerp announced that it would no longer issue certificates for lab-grown diamonds. This decision aims to establish a clearer distinction between natural and lab-grown diamonds and to protect the value of the natural diamond industry.
At the same time, the prestigious Gemological Institute of America (GIA) stated it would continue evaluating lab diamonds but introduced a major change in its certification system. GIA announced that it would no longer apply the traditional 4Cs grading system (cut, clarity, color, carat) for lab-grown stones. Instead, diamonds would be labeled simply as “premium” or “standard.”
This new approach was designed to help consumers more clearly understand the difference between natural and lab-created diamonds. The 4Cs system was originally developed based on the rarity of natural diamonds in the Earth, and applying it to lab-grown stones had become a source of confusion.
Comparison Table: Natural vs. Lab-Grown Diamonds
| Feature | Natural Diamond | Lab-Grown Diamond |
| Formation Time | Millions of years in Earth | Several weeks in a lab |
| Chemical Composition | Carbon (C) | Carbon (C) |
| Physical Hardness | 10 Mohs | 10 Mohs |
| Appearance | Identical | Identical |
| Certification | GIA, IGI | GIA, IGI |
| Price | Higher | Typically more affordable |
| Rarity | Rare | Man-made, reproducible |
| Environmental Impact | Higher (mining effects) | Lower, more sustainable |
| Ethical Concerns | Possible conflict stones | Ethical, traceable production |
| Detectability | Only with advanced testing | Very difficult to distinguish |
3. Production & Environmental Impact
Lab-grown diamonds are produced in controlled environments and within shorter timeframes, resulting in significantly less environmental impact compared to natural diamonds. While mined diamonds are associated with intensive water usage, habitat loss, carbon emissions, and human labor, lab-grown diamonds are associated with the following:
- more sustainable
- more ethical and
- lower carbon footprint
stands out with its alternatives.
However, this also heavily depends on the energy sources and methods used by the production facility. Laboratories powered by renewable energy offer significantly more environmentally friendly solutions.
4. Pricing & Commercial Perspective
Lab-grown diamonds are generally more affordable than their natural counterparts. The reasons include controlled supply, faster production times, and independence from geological conditions. However, this affordability does not imply lower value.
Today, many major jewelry brands offer collections that include both natural and lab-grown diamonds, encouraging consumers to make informed, transparent decisions.
5. Ethics & Consumer Choice
Among younger generations, values like ethical production, eco-friendly alternatives, and transparent supply chains are increasingly important. Lab-grown diamonds strongly appeal to this audience. Additionally, they offer a more accessible choice for consumers who desire a “perfect” stone in terms of clarity and size.
Conclusion: The Definition of “Real” Is Evolving
From a scientific perspective, lab-grown diamonds are real diamonds. Their chemical composition, physical characteristics, sparkle, and hardness are identical to those of natural diamonds. The term “real diamond” now encompasses not only stones formed over millions of years underground but also those scientifically created to the exact same standard.
As the industry evolves with commercial choices, personal values, and ethical concerns, lab-grown diamonds are carving out a strong place in the future of jewelry, while natural diamonds appear poised to retain their enduring value.