How to Tell if a Diamond is Lab-grown?

Jan 17th 2024

With the emergence of Lab-Grown Diamonds, suitability for gemstones has taken on a whole new aspect. These gemstones, appreciated for their virtuous and environmentally friendly origins, contain both physical and chemically identifiable components with those of mined origin. But despite how much they look alike, distinguishing between a natural diamond and one grown in the lab is quite an uncommon task. So, how to tell if a diamond is lab-grown?

The Naked Eye Test

The other common belief that with bare eyes lab-grown and natural gems can be distinguished from each other is far away not true. Both cases describe the same characteristic, blaze, and gumption, that costs one to jaw even a gem master. But where should a person look for the truth?

Diamonds Under the Microscope

Although invisible to the human eye, man-made gemstones reveal faint signs when examined under a jeweler’s loupe or microscope. Key indicators include:


Under UV light, natural diamonds usually reflect blue while man-made ones can either lack fluorescence or display red. On the other hand, this method is not bulletproof because some natural stones glow red.

Growth Patterns

This controlled growth environment is reflected by faint lines or “chevrons” that may appear in lab-grown gems, particularly those manufactured through the CVD method.

Diamonds Speak in Numbers: The Power of Gemological Reports

For people who want to find complete clarity, a gemological report from an external lab like the Gemological Institute of America (GIA) is extremely useful. These reports thoroughly analyze the cut, color, clarity, and most importantly its provenance for diamonds. Phrases such as “laboratory-grown” or "manmade" in the report point to its origin.

Also, check out our oval lab-grown diamonds!

Beyond the Brilliance: Conscious Luxury with EX3 Diamonds

Choosing a lab-grown diamond goes beyond the stone; it represents such an unequivocal pledge to conscious luxury. We promote ethical practices and sustainable sourcing at EX3 Diamonds, which promotes your sparkle into a positive contributor to the world.

EX3 Diamonds does not only provide lab-grown diamonds, but we also offer a holistic ethical luxury experience. Everything from expert guidance to masterfully crafted jewelry shows our dedication to your values. Such shimmering pieces not only make you beautiful to own, but also ensure a brighter future for the planet and its inhabitants.

Aligning with Your Values

Minimized Environmental Impact

Using EX3 Diamonds means selecting diamonds that have a rather small negative effect on the environment by way of traditional mining. This selection leads to minimized water usage, greenhouse gas emissions, as well soil disturbance which enables your diamond to shine brightly while maintaining a light footprint on the Earth.

Fair Labor Practices

We carefully select lab-grown diamond partners who value fair labor practices, ensuring that workers are paid fairly and work in a safe environment. And let the brilliance of your diamond reflect a commitment to responsible trading and the welfare of other human beings.

Empowering Consumers

By choosing synthetic diamonds, you join the trend that raises a new generation of responsible consumers. It requires transparency and sustainability; luxury is redefined by this movement as beauty together with responsibility.

Embrace the Conscious Choice

Step into EX3 Diamonds and discover an infinite dynamic where ethical values meet sustainable splendor effortlessly. Whether you go for the timeless beauty of a natural diamond or embrace the conscious sensuality of lab-created, keep in mind that it is not only about how much sparkle your life lacks. Check out our website or meet our gemologists to find your dream diamond – round-shaped lab-grown diamonds - one that glimmers not only in brilliance but also illuminates with ethics and sustainability practices!