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.
Is strong fluorescence in a diamond good or bad?
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.
Is strong blue fluorescence in a diamond bad?
Strong blue fluorescence is not necessarily bad! We have seen many diamonds with strong blue fluorescence that has not had any negative effect on the appearance of the diamond. In fact, once we observed an M color diamond look like a near colorless diamond because of very strong blue fluorescence.
What is the most common color of fluorescence in a diamond?
Though blue is the most common color for diamond fluorescence, some diamonds fluoresce a different color. Yellow is the second most common color, and it would have the opposite effect of a blue diamond during color grading.
Does fluorescence ruin a diamond?
The answer is no, aside from glowing under black lights, the more strong forms of fluorescence can destroy the beauty of a diamond. … In some cases, fluorescence is used to help diamonds that are lower on the color grade (meaning that they are warmer in color than the colorless diamonds that come to mind).
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 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.
What is Gia fluorescence?
On a GIA diamond grading report, fluorescence refers to the strength, or intensity, of the diamond’s reaction to long-wave UV, which is an essential component of daylight. The light emitted lasts as long as the diamond is exposed to the ultraviolet source.
Does cubic zirconia fluorescence?
Cubic Zirconia (CZ) often shows orange fluorescence but in REVERSE ORDER. This reversal is a sure test for diamond versus CZ.
What is a milky diamond?
A cloudy diamond has inclusions that make it appear hazy in some parts or all of the diamond. … It’s not solely cloud inclusions—those made up of three or more crystal inclusions—that can make a diamond appear hazy. It can be other types of inclusions like feathers and twinning wisps that can cloud the diamond.
Does pink diamond fluorescence?
Most pink diamonds, for instance, fluoresce. This is the case for a vast majority of the stones coming from the Argyle mine, whatever their colour. … For instance, a blue coloured diamond can reveal a yellow glow as well as a green one. Natural colour diamonds show a more or less strong fluorescence.
How much does fluorescence matter in diamonds?
The fluorescence effect is present in over 30% of diamonds and is an important consideration when buying a loose diamond. When UV light strikes a diamond with fluorescent properties, the stone emits a glow.
Is Blue Nile legit?
Blue Nile diamonds are absolutely legit. … Blue Nile has over 120,000 diamonds available on their site – not as much as their competitor James Allen, but certainly enough to guarantee you’ll find something that fits your taste and your budget.
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 Lab diamonds have fluorescence?
As a final note on fluorescence, lab-grown diamonds (other than fancy color lab-grown diamonds) never have fluorescence. We think in time this fact could make fluorescence in a natural diamond a more desirable and valuable trait since it serves as a natural differentiator to lab-grown diamonds.
Is color or clarity more important?
The color grade is more important than the clarity grade because cushion-cut diamonds tend to retain a lot of color. … Because of this, you can go as low as SI1 or SI2 on the clarity scale, and the diamond should still appear flawless. If you are shopping for a radiant diamond, prioritize color over clarity.