What Does Lab-Grown Diamond Mean?
Lab-grown diamond refers to a real diamond that has been artificially elaborated. However, these diamonds are chemically, structurally and physically identical to earth-mined diamonds. To such an extent that even gemologists cannot distinguish between them.Â
The Stats
- 100% real diamonds — formed in a laboratory setting, making them a more sustainable choice.Â
- 70-90% more financially accessible than an earth-mined diamond of the same characteristics.Â
- 52% of couples now choose lab grown diamonds for their engagement ring
The Process
How Are Lab-Grown Diamonds Made
How are diamonds grown in a lab? Lab-grown diamonds are created using cutting-edge technology that replicates the intense natural conditions found deep within the Earth’s mantle, where traditional diamonds are formed.
Some of the ‘sustainable’ benefits of choosing a lab-grown diamond are:
The supply chain is both shorter and more transparent
Earth-mined diamonds are harvested in a long and obscure process that requires them to pass through many hands. This puts more of a burden on the planet (producing more carbon emissions) and makes diamonds expensive. Because the supply chain is shorter, lab-grown diamonds are a cheaper and more planet-friendly alternative that still guarantees the same quality. After all, diamonds shouldn't cost the earth.
They are ethical and ensure greater protection of human rights
The earth-mined diamond industry has a reputation for its unethical and shady practices. Typically, this can be issues such as slave labour, child labour, low wages, or community displacement to make way for mines. For example, have you ever heard of ‘blood diamonds’? These are diamonds mined in conflict zones, with oppressive work conditions, to fund the crimes of rebel movements in the region. The Kimberley Process was brought in to prevent these types of situations from occurring, however, its narrow wording and inconsistent application have left a lot to be desired.
In addition, accidents and other health hazards are commonplace in diamond mines. Workers are at risk of mine explosions, and other on-site risks, as well as exposure to pollution and toxins which can increase the risk of cancer, among other illnesses.
In contrast, lab-grown diamonds have zero impact on human life, as the lab ‘diamond growing process necessitates maintaining a clean room environment’. This results in ‘no life or occupational hazards to employees’.
The technology used is sustainable and environmentally-friendly
Mining earth diamonds requires a huge amount of fossil fuel and water, putting unnecessary pressure on the planet. In addition, the emissions produced from the traditional mining process cause both air pollution and groundwater pollution. In parts of Africa, where fresh water is scarce, this is a huge problem.
Take the ‘Marange Diamond Fields’ in Zimbabwe. Here, toxic waste (from the diamond mine) was being disposed of in the nearby river. This caused widespread damage such as biodiversity loss, crop damage, soil contamination, as well as health risks to workers as a result of exposure to toxins. This is just one of the many examples that showcase how unsustainable the traditional diamond mining process can be.
Buying Guide: How to Choose a Lab-Grown Diamond
Use our top recommendations to choose the right diamond for you.
ONE: Understand the four Cs of diamonds
- Cut: Choose from classic round brilliants to trendy oval, emerald, or pear cuts; the shape of your diamond affects both style and sparkle. Think about the overall look you want — timeless, modern, or somewhere in between.
- Clarity & Colour: Refer to the charts above. While these aspects are on a scale, you don’t have to have a Flawless D diamond—an SI clarity with F colour might help you get more for your money and is still an extremely high-quality diamond.
- Carat: The carat weight is often one of the first things people look for, and while it’s nice in theory to have a heavy rock, there are plenty of half-carat diamonds that are equally as beautiful as a one-carat one.
TWO: Check certification
When purchasing a diamond, ensure that the seller offers an IGI or GIA certification to verify that the diamond matches the description provided. At Fyne, we use IGI-certified diamonds in all of our jewellery.
THREE: TRUST YOUR SOURCE
Always buy from a retailer that clearly states their diamonds are lab-grown and ethically sourced. Reputable sellers will offer transparency, certification, and excellent customer service.
FOUR: HAPPY SHOPPING!
If you shop with these points in mind, you’ll find the diamond that suits you and your lifestyle best. Choose a diamond that feels like an extension of your personality; for a vintage feel, choose lower grade colours on whimsical rose gold or for something more classic, opt for icy diamonds on vibrant white gold.
Frequently Asked Questions
What is a lab grown diamond?
A lab-grown diamond is a diamond that is created through a controlled artificial process, rather than a gemmological process beneath the earth’s surface. Lab-grown diamonds have the same physical, chemical and aesthetic structures as mined diamonds.
Is there a chemical difference between a lab grown diamonds and a diamond mined from the Earth?
Put simply, no, there is no chemical or aesthetic difference between lab-grown diamonds and ones mined from the Earth.
Gemological labs (e.g., GIA, IGI, or HRD) can utilise very advanced and expensive machinery to detect slight differences in growth structures resulting from the respective environments of each diamond's formation process. This is like comparing the DNA of two different individuals – each will have unique characteristics but still be made up of the same chemical elements.
Are there other names for lab grown diamonds?
A lab-grown diamond is the most widely used term to describe diamonds that are grown through scientific processes and human intervention.
Other names include man-made diamonds, lab-created diamonds, above-ground diamonds, cultivated and cultured diamonds.
What is the difference between a lab grown diamond and cubic zirconia or moissanite?
Cubic zirconia is a simulant – it's made to look like a diamond, but its chemical, optical, and physical properties are not the same as those of a diamond. It is less durable and has less brilliance than a mined diamond or a lab-grown diamond.
Moissanite is also a simulant or imitation and is rarely found in nature, so most Moissanite is manufactured – it is the second hardest material after diamonds. Moissanite also refracts light differently, so its sparkle can look quite colourful, almost like a rainbow effect. In terms of price, Moissanite is significantly cheaper than lab-grown and earth-mined diamonds.
Are there grading reports (certificates) for lab grown diamonds?
All of the globally renowned gemmological labs issue lab-grown diamond reports that clearly state the "identification" or "origin" of the diamond as "laboratory-grown".
Lab diamonds above 0.30 carats can be graded for their colour, cut and clarity. To see an example of such a report, please visit the International Gemological Institute (IGI).
For our bridal jewellery, we work with IGI or GIA-certified lab diamonds.
Do you offer grading reports for Fyne Jewellery items?
Our daily wear collection does not come with a grading report; however, we do include a certificate of authenticity to confirm that your item is 100% genuine.
For our bridal jewellery, we always provide an additional gemmological grading report by a laboratory of your choice. We typically work with IGI-certified diamonds.
How is a lab grown diamond made?
There are two primary methods for creating lab-grown diamonds: HPHT and CVD. Read about each technological process below:
HPHT (High Temperature, High Pressure) mimics the environment that a natural diamond undergoes beneath the Earth’s surface. Temperatures exceeding 1300 degrees Celsius and pressures of 50,000 atmospheres are required to turn a carbon source into carbon atoms that start to form into a rough diamond crystal.
CVD (Chemical Vapour Deposition)is a process whereby a hydrocarbon gas is placed into a vacuum chamber over a tiny diamond seed. Carbon gases are heated to 800º Celsius, causing them to break apart from their carbon atoms, which then form on top of the diamond seed, slowly growing into a rough diamond crystal.Â
How long does it take to grow a lab diamond?
It can take 3-6 weeks to grow a lab-grown diamond rough, although it may take longer.
Do lab grown diamonds test as real diamonds?
Yes. When using a diamond tester, lab-grown diamonds test as real because their physical and chemical properties are identical to those of mined diamonds.
Are all lab grown diamonds the same colour and clarity?
No—that is why the most reputable grading labs (ie, GIA, HRD, IGI) will also grade lab-grown diamonds for their colour, clarity and cut.
What percentage of all diamonds are lab grown?
Lab-grown diamonds only make up about 15% of all diamonds in the market. This means that they are still relatively rare within the industry.
Fun fact: Laboratory-grown diamonds were invented by General Electric in the 1950s and have been responsible for significant industrial advancements in telecommunications, optics, and healthcare.