Fluorescence Diamonds and Their Value

What are fluorescence diamonds? Better yet, what do we mean by fluorescence?

If you are an avid diamond collector, seller or investor, or diamond enthusiast, you need to understand this phenomenon. After all, it can affect how you view diamonds, especially when it comes to their value.

What is fluorescence in diamonds?

Fluorescence came into light because it's been added in grading reports of certified diamonds. The stone can be classified as Fluoro or not.

It is actually a phenomenon wherein a stone such as a diamond tends to emit a soft glow when exposed under UV light, such as black light, sun, and even office lights.

As to what is the probable reason for this, no one is really for sure. However, there are already a lot of arguments about this one.

You see, not all diamonds emit such glow, but it doesn't mean that they are fake diamonds. Moreover, not all fluorescent diamonds give off the same degree of glow. Some are so faint that you can hardly see the color.

Does it affect the value of certified diamonds?

The answer to the question is both a yes and a no. The truth is that fluorescence cut should never have any value or worth of your diamond. It was added into the grading report or the certificate to merely inform you of the characteristics of the diamond.

Furthermore, recent studies reveal that usual buyers of diamonds can seldom tell if they are dealing with fluorescent diamonds or not, simply because they are very rare.

Nevertheless, fluorescence seems to affect the price of the diamonds. It appears that those that emit yellow fluorescence are priced lower than the others. After all, sellers think that whiter or brighter stones are a lot more valuable and cleaner than the former.

On the other hand, if the fluorescence is colored blue, expect the diamond to be priced higher than those that emit yellow tones.

The emphasis on price difference may also be caused by the seller themselves, who were not trained enough to explain what fluorescence really is and what it says about the diamonds that they are currently selling.

Lastly, diamonds that are considered to have a very high level of fluorescence tend to appear murky cloudy. Simply put, it does have a slight effect on the clarity of the diamond, which is one of the major factors in determining the real value of the diamond. Again, though, this type of diamond doesn't come very often.

What fluorescence diamonds should matter then?



Fluorescence doesn't have any weight on the value of your diamond—that's the truth. What should you focus on are the 4Cs, which are clarity, color, cut, and carat weight. It must be brilliance over fluorescence.

When you come across fluorescence diamonds, you may want to check the grading report first and see how the stone fare using these four criteria. Most of all, you need to make sure that you're dealing with an authentic report. This is so you don't end up dealing with fake diamonds.