Is strong fluorescence bad for diamond?
In most cases fluorescence is simply an identifying characteristic and not a performance characteristic, and is therefore NEITHER good nor bad. In some cases, strong or very strong fluorescence can make a diamond appear cloudy, diminishing its transparency and eye appeal.
What is strong blue fluorescence?
Fluorescence is an invisible glow that some diamonds emit under Ultraviolet (UV) Rays. In H-Z color diamonds, medium to strong blue fluorescence can be a helpful factor because blue is a complementary color to yellow, making the diamond look whiter than its actual color.
What is blue fluorescence in a diamond?
Fluorescence refers to a diamond’s tendency to emit a soft colored glow when subjected to ultraviolet light (such as a “black light”). Because the fluorescent glow is usually blue (which is the complementary color to yellow) fluorescence can make diamonds of I-M color appear up to one grade whiter.
What diamond fluorescence is best?
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.”
Does fluorescence affect diamond value?
How Fluorescence Affects Value of Diamonds. 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 color do diamonds fluoresce?
blue
In most cases, diamonds fluoresce blue. This cancels out the slightly yellowish color in most diamonds, resulting in a whiter appearance in sunlight. In artificial light, there’s little UV intensity more than a few inches from the light source.
What makes a diamond look blue?
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.
Do diamonds look blue in sunlight?
Although the sun’s UV rays don’t affect most diamonds, diamonds with very strong fluorescence glow blue under direct sunlight. While the amount of fire and brilliance is not changed, the diamond’s color appears blue.
Is fluorescence desirable in a diamond?
Some trade professionals think blue fluorescence enhances a diamond’s appearance, especially diamonds with I to M color grades. The opposite is true for diamonds with higher color grades: diamonds in the D to H color range with a bluish fluorescence are often considered less desirable by the trade.
What is IJ diamond color?
J color diamonds are part of the near colorless class of diamonds which includes grades G through J on the GIA grading scale. These diamonds can exhibit some color (typically yellow), but this color saturation is most visible when the diamond is viewed from the side.
