What is diamond fluorescence?

1 fluorescent diamond

Fluorescence refers to the light emitted by a diamond under the excitation of ultraviolet light. The image says that some parts of the banknotes we usually use are not able to emit light under the ultraviolet light of the money detector. It is the kind of light. Some diamonds fluoresce, usually blue-white fluorescence, and a small percentage of diamonds glow yellow.

2 colors

To understand the fluorescence of a diamond, you must start with the color of the diamond. A diamond is equivalent to a prism that splits the light into a colorful light and reflects it back to form a colorful flash. Just as we pass colored glasses, the color of the diamond acts as a filter. Thereby reducing the escape of reflected light. The lighter the color of the diamond, the stronger the color of the flash. The higher the color level.

3 fluorescence

For fluorescence, people's attitudes are different. Some people are looking for diamonds that produce this unique effect, while others avoid buying them. In fact, different levels of fluorescence are only discernible by professionally trained jewellery professionals.

The fluorescence intensity level is divided into four levels of “strong”, “medium”, “weak” and “none”. The fluorescence levels are medium or strong, which makes the surface of the nearly colorless diamond look whiter at a certain distance, giving the diamond a sense of scent or slipperiness. Diamonds with intermediate or strong fluorescence are priced lower than other diamonds.

How do you choose a fluorescent drill?

For idealists, it is best to seek colorless diamonds with D-F grades and diamonds with a "no" rating.

For diamonds that have a high value and are very white in color and cannot be seen with the naked eye, you can purchase diamonds with a color grade of G-I close to colorless and fluorescent grades of intermediate or blue-white.

Furthermore, if you don't want to compromise on color but don't want to exceed your budget, you can choose a diamond that has a good cut, Si1---Si2 and is accompanied by intensity fluorescence. It is inferior to the naked eye. . It is possible that you prefer the unique effects created by fluorescence.

The Fluorescence indicator refers to the intensity of colored light such as blue or yellow light that a diamond emits under intense ultraviolet light. That is to say, it is not felt under natural light, except in the summer sun with strong ultraviolet rays, the diamond with strong fluorescence, the naked eye feels the presence of fluorescence. Except for this case, fluorescence has no effect on wearing.

In nature, the proportion of diamonds that are not fluorescent is very large. Generally, diamonds with fluorescence, fire color, and transparency are very good. If it is STRONGBLUE diamonds, under the magnifying glass, there will be blue faint blue light, very beautiful. Many famous diamonds in the world are strong fluorescent diamonds, such as blue hope diamonds (HOPE drills).

Are all diamonds fluorescent?

Not all diamonds have fluorescence, but it is true that most diamonds have a little fluorescence. Internationally, diamonds are written to be fluorescent indicators, and there is no special label on the domestic certificate.

What effect does fluorescence have on diamond prices?

Although fluorescence is a natural indicator, it does not affect the value of diamonds. The value of a diamond depends only on 4C, which is color, clarity, size and cut. Other indicators are for reference only. The choice of fluorescence can be said that when 4C meets the selection conditions, it can be ignored. The presence or absence of fluorescence or strong fluorescence depends on the individual's preference and does not affect the value of the diamond. The world's famous blue diamond - Hope is a diamond with strong fluorescence (StrongBlue).

How does fluorescence affect the appearance of diamonds?

GIA studies have shown that for most diamonds, the intensity of fluorescence has no significant effect on appearance. The fluorescence study published by GIA mentions that most people cannot distinguish between fluorescent and non-fluorescent diamonds.

Often, observers prefer the appearance of diamonds with medium or strong fluorescence. In a few cases, diamonds with very strong fluorescence look a bit sloppy or even greasy. Of course, diamonds in this case account for only about 0.2% of GIA-identified diamonds.

Is the diamond fluorescent, harmful to the body?

In fact, this is a big misunderstanding, and I don’t know who first opened this rumor. The principle of fluorescence is that under the irradiation of ultraviolet light, the ultraviolet energy is absorbed by the ultraviolet energy and immediately re-emitted at a lower or longer wavelength due to the impurity of nitrogen atoms. The lower energy fluorescence we see is blue. Fluorescent, it is not radioactive, no radiation, and will have no effect on health.

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