Not all diamonds are the same. Each stone is unique and is to be graded appropriately. One way to do this is by measuring the diamond's fluorescence.

What is Fluorescence?

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Fluorescence is the soft glow that appears when a diamond is placed under a black or ultraviolet light. Because fluorescence contains nitrogen, aluminum, and boron, it releases photons. This glow can appear as different colors, like white, yellow, green, or pink. However, blue is the most common. The color variant is dependent on the physical makeup of a diamond's atomic structure.

Levels of Fluorescence



There are four levels used to measure fluorescence. Most consumers cannot detect small amounts of fluorescence in a diamond with the naked eye. However, a trained professional can detect fluorescence, often without the use of tools.

Please refer to the chart below:

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Levels Ratings: What they mean?
NONE Excellent:  No fluorescence was detected in the diamond.
FAINT ExcellentVery Good: Very little fluorescence was detected in the diamondshows a faint blue.
MEDIUM Very GoodGood: Fluorescence was detected in the diamondthis shows up blue.
STRONG Very GoodFair: A strong amount of fluorescence was detected in the diamondthis shows up in a strong blue. Ask if the amount affects the appearance of the stone and ensure that there is a return policy available.
VERY STRONG GoodPoor: A very strong amount of fluorescence was detected in the diamondthis shows up as a very strong blue. Ask if the amount effects the appearance of the stone and ensure that there is a return policy available.

More Facts



Diamonds with fluorescence can be viewed negatively. Enough of it can make the diamond look cloudy. Some diamonds contain fluorescence, which can reveal itself in blue or yellow tints. The blue neutralizes the yellow, making the diamond appear colorless.

While some diamonds are listed as fluorescence-free, they might still look milky or hazy. Do not let this scare you. Choosing the right diamond is all a matter of personal taste. When in doubt, do your research. If you cannot find an answer to your questions, do not hesitate to ask us for help! In addition, be sure of your diamond's return policy upon purchase. This will protect your money and your expectations of the diamond you select.

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