Lab-Grown Diamond: A Comprehensive Guide to Laboratory-Grown Diamonds

Lab-grown diamonds have quickly become one of the most significant innovations in the jewelry industry. Contrary to popular belief, a lab-grown diamond is not an imitation of a diamond; rather, it is chemically, physically, and optically identical to a natural diamond mined from the earth.

Is a lab-grown diamond a real diamond?

Yes. A lab-grown diamond is 100% a genuine diamond. It consists of pure carbon (C) with the same crystal structure and hardness (10 on the Mohs scale) as a natural diamond. The only difference is the diamond's origin; a lab-grown diamond is cultivated in a controlled environment, mimicking the conditions found deep within the earth, while a natural diamond formed millions of years ago in the earth's crust.

Because lab-grown diamonds are real diamonds, they are graded and certified according to the same criteria (4C: Carat, Color, Clarity, Cut) as natural stones. Even an experienced gemologist cannot distinguish them with the naked eye or a traditional diamond tester. You can read more about diamonds in our diamond guide.

Lab-Grown Diamond vs. Natural Diamond: A Comparison

The choice between a lab-grown diamond and a natural diamond depends on your values. Below is a factual comparison of the two:

How are lab-grown diamonds made?

Two main technologies are used in the production of lab-grown diamonds, both of which produce high-quality, gem-grade diamonds:

• CVD (Chemical Vapor Deposition): The diamond is grown from carbon-rich gas in a vacuum chamber. The gas is ionized into plasma, causing carbon atoms to deposit layer by layer onto a thin diamond seed, forming a rough diamond.
• HPHT (High Pressure High Temperature): This method mimics nature's own process by subjecting carbon to extreme pressure and high temperature.

Why choose a lab-grown diamond ring?

The biggest practical advantage of lab-grown diamonds is their price. Since the production chain is shorter and does not require massive mining operations, consumers can get a significantly larger and purer stone for the same budget. This makes lab-grown diamonds an excellent choice, especially for striking jewelry.

For example, a lab-grown diamond ring allows you to acquire a diamond of up to 2.00 carats for a fraction of the cost of a natural stone, without compromising on brilliance or durability. Many popular Finnish brands, such as Sandberg and Festive, now also offer stunning designs with lab-grown diamonds.

Ethics and Environmental Impact

Many choose lab-grown diamonds for their ethical advantages. The origin of a lab-grown diamond is always 100% traceable and conflict-free. Although growing diamonds requires a significant amount of electrical energy, it does not cause the same burden on ecosystems or soil displacement as traditional mining.

Are lab-grown diamonds always flawless?

A common misconception is that because lab-grown diamonds are produced in a controlled manner, they would always be perfect. In reality, like natural materials, lab-grown diamonds are unique. They can have small internal inclusions or color nuances that arise during the growth process—just like in natural formation deep within the earth.

This is actually proof of the stone's authenticity; perfect flawlessness without a certificate could indicate a cheap simulant, such as cubic zirconia. By choosing a lab-grown diamond, however, you can often acquire a stone with a very high clarity grade (e.g., VS1 or VVS2) within your budget, where impurities are not visible to the naked eye.

Certification: IGI and GIA as Guarantees of Lab-Grown Diamond Quality

Just like natural diamonds, high-quality lab-grown diamonds are analyzed and certified by independent gemological laboratories. The most well-known certifiers are IGI (International Gemological Institute) and GIA (Gemological Institute of America).

A certificate is the stone's "passport," verifying its 4C grading: Carat weight, Color, Clarity, and Cut. IGI is currently the market leader in grading lab-grown diamonds, and most lab-grown diamonds in Kulta-Aika's selection come with an IGI certificate. The certificate ensures that you receive a diamond of the exact quality you pay for.

Does a lab-grown diamond retain its value?

When discussing the value of a diamond, it is important to distinguish between use value and investment value. The greatest value of a lab-grown diamond is the brilliance it enables: you get a larger and more dazzling piece of jewelry for the same investment. It is an excellent choice for everyday jewelry meant to bring joy for decades.

In terms of investment, natural diamonds retain their price better due to their limited availability. The price of lab-grown diamonds is based more on technology and production, making them a great choice for consumers who value price-quality ratio, but a lab-grown diamond is not suitable as an investment object.

Frequently Asked Questions about Lab-Grown Diamonds (FAQ)

Is a lab-grown diamond the same as cubic zirconia or moissanite?

No, they are not. Cubic zirconia and moissanite are diamond simulants, meaning they are different substances that only look like diamonds. A lab-grown diamond is a genuine diamond.

How can a lab-grown diamond be identified?

Identifying a lab-grown diamond requires specialized equipment from a gemological laboratory, which can detect subtle growth patterns in the diamond's crystal structure. All larger lab-grown diamonds are laser-inscribed and come with a certificate of authenticity (e.g., IGI or GIA) stating the stone's origin.

Is a lab-grown diamond suitable for an engagement ring?

Absolutely. Due to its durability and brilliance, a lab-grown diamond is a perfect choice for an engagement ring or wedding ring. It withstands daily wear and maintains its brilliance forever, just like a natural diamond.

Find your dream ring from Kulta-Aika's extensive selection. We serve you with expertise in our online store and in our shops in Tammisto, Vantaa, and Kamppi, Helsinki.