What does faint fluorescence in a diamond mean?

Diamond Fluorescence. Fluorescence refers to a diamond’s tendency to emit a soft colored glow when subjected to ultraviolet light (such as a “black light”). … In fact, the visible effects of Faint to Medium fluorescence are perceptible only to a gemologist using a special UV light source.

Is faint fluorescence OK in a diamond?

Diamond Fluorescence and Near Colorless Diamonds

For nearly colorless diamonds in the G-H range, we recommend faint fluorescence at most. Faint fluorescence can have the benefit of bumping your diamond up one color grade, making your “near-colorless” diamond appear “colorless.”

Is faint fluorescence OK?

Generally speaking, you will get a higher discount on D-E color diamonds that have fluorescence in them. In F/G colors, the discount might be lower in the faint range, but it might be higher in the medium to the strong blue range.

Is Diamond Fluorescence Bad or Good? [Faint, Medium, Strong Blue]

Fluorescence Things to Consider
None Excellent

Is very strong fluorescence bad?

Fluorescence can have a negative effect on higher colored stones, such as those graded D, E and F. At times, diamonds with very strong blue fluorescence can reveal an oily, milky, hazy or grayish look, dulling or darkening the diamond. For this reason, With Clarity doesn’t carry very strong blue diamonds.

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What does it mean when a diamond turns blue under UV light?

Fluorescence is when a diamond shows a soft glow under ultraviolet (UV) light. This is caused by certain minerals in the diamond. This effect is totally natural, appearing in a third of all diamonds. Most diamonds with fluorescence will glow blue.

What is the best fluorescence in a diamond?

Blue is by far the most common fluorescence color in diamonds when they are exposed to longwave UV rays. Copyright: GIA and Harold & Erica Van Pelt. Courtesy: Harry Winston, Inc. 4.

How does fluorescence affect diamond value?

Sometimes, a diamond’s fluorescence will have no effect on its price, while at other times it will. Colorless diamonds, those with a color grade of D-F, are sold at a discount if they have a fluorescent glow underneath a UV light.

What is the highest color grade a diamond can have?

The highest color grade for a diamond is “D”. “D” color diamonds are very rare and not commonly found in traditional jewelry. Most diamonds used in jewelry have a slight presence of color.

How do you tell if a diamond is real?

To determine if your diamond is real, hold a magnifying glass up and look at the diamond through the glass. Look for imperfections within the stone. If you’re unable to find any, then the diamond is most likely fake. the majority of real diamonds have imperfections referred to as inclusions.

Why do some diamonds look dark?

Conclusion. The two reasons why some diamonds appear darker in sunlight is due to High Light Performance. The better the cut the darker a diamond will appear under direct sunlight.

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