Do lab grown diamonds have fluorescence?

Yes, lab-grown diamonds can exhibit fluorescence, which is a natural phenomenon occurring in some diamonds, including lab-grown ones. It is […]

Do lab grown diamonds have fluorescence?

Yes, lab-grown diamonds can exhibit fluorescence, which is a natural phenomenon occurring in some diamonds, including lab-grown ones. It is caused by the absorption of invisible ultraviolet light and the subsequent release of visible light.

As a result, some lab-grown diamonds will emit a soft glow or fluorescence when exposed to UV radiation, such as sunlight or black light.

The strength of this fluorescence can range from faint to very strong, and the most common color emitted is blue, although other colors such as yellow, green, orange, and white can also be seen.

However, it’s interesting to note that unlike natural diamonds, lab-grown diamonds are grown in a controlled environment, which allows the lab to avoid any fluorescence.

This is why 99.9% of the lab-grown diamonds you see are graded as “Fluorescence: none”. Fluorescence in lab-grown diamonds is most often due to the heating and radiation process during their creation.