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Diamond Fluorescence and Designing Your Engagement Ring

Diamond Fluorescence

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When seeking the best value on the center diamond for your custom engagement ring, you may be presented with the option of purchasing a diamond with fluorescence. Fluorescent? Like the overhead lights that give you a headache in Home Depot?

If you’re trying to make the most of your budget when choosing a high-quality diamond, selecting a diamond with fluorescence could be a more affordable option. We’re here to clear up any misconceptions about diamond fluorescence and help you feel confident about choosing a fluorescing diamond, if that’s something you decide to do.

What is diamond fluorescence?

When exposed to UV light, some diamonds emit a soft, colored glow. Blue is the most common color, but fluorescing diamonds may also glow yellow, orange, white, or red. The featured photo above shows diamonds fluorescing under UV light.

In fluorescing diamonds, UV radiation moves electrons within the crystal structure, but the diamond’s structural integrity is never compromised. About 25-35% of diamonds exhibit fluorescence.

What do the experts say about fluorescence?

GIA studies show that fluorescence does not affect the appearance of most fluorescing diamonds. Studies have also concluded that untrained observers tend to prefer the appearance of diamonds with medium-to-strong fluorescence. If detected, fluorescence will be disclosed to you and listed on the GIA grading report for your certified diamond.

How does fluorescence affect the diamond’s price?

Among diamonds with exceptional clarity and color, a very strong fluorescence can impact the price by up to 15%, making it more affordable. In lower-quality stones, fluorescence hardly affects the price.

One thing to consider is that a blue fluorescence can actually make a yellowish diamond appear white or colorless to the naked eye. Remember that elementary school lesson about complementary colors? Blue and yellow are directly opposite each other on the color wheel and, when combined, they can produce white light.

What will you choose?

If your lady likes to visit dance clubs, there’s no question that a fluorescing diamond would look unique under the UV lights. But for everyday wear, fluorescence shouldn’t affect the appearance of your diamond, except in rare cases.

Choosing whether or not to buy a fluorescing diamond is just as important as considering other factors like quality of clarity, cut, color, and carat weight. Most of the time, the four C’s can affect your diamond’s appearance more strongly than fluorescence.

Have you considered purchasing a fluorescing diamond? What other questions do you have about this phenomenon?

Featured photo by James St. John

To Learn more about diamond fluorescence check out our  diamond fluorescence advance guide