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If the diamond you want to buy a diamond grading report the Gemological Institute of America (GIA) or some other lab respected, should indicate whether the diamond has a certain degree of fluorescence. Fluorescence is basically diamond reaction to ultraviolet radiation exposure. Discount Travel . To determine whether the diamond reacts in or not and then evaluate strength of fluorescence, if it does, the stone is displayed using an ultraviolet rays lamp that gives off only ultraviolet radiation.

The power of fluorescence is usually classified as moderate, weak, weak, strong or very strong. So when a jeweler says that a diamond is colorless, fluorescent blue he means that the color of the diamond appears to be blue, once seen under ultraviolet light. In normal light appears colorless stone like diamond is actually a colorless stone. Some diamonds would react; others do not. A diamond can react in any color, but most diamonds fluoresce yellow, white or blue.

Diamond fluorescence is essential to know, especially the color issue, as there are wavelengths of ultraviolet radiation that surrounds us, at any time to change. For example, ultraviolet rays are always present in the light of day and often in fluorescent light fixtures that you can see the limits of many buildings for offices and shops. Therefore, depending on the intensity of ultraviolet fluorescence and strength of diamond light source, the color does not come out the same in all the lights.

For example, if your diamond reacts in a strong blue, which can seem a bit more white in daylight, or in a shop or an Office with fluorescent lights, such as ultraviolet radiation will produce some of Blue Diamond, concealing any weak shades of brown or yellow that may be present. Alternatively, the same white stone will appear less when seen at home in any warm light, for example in the bulb in your home, where you can see the true color of the diamond without the benefit of any ultraviolet radiation. A diamond that reacts in “yellow strong” can look more yellow in some lights.

To ensure that the true color of the body be graduated, ask your jeweler to test your diamond for fluorescence diamond color grading it first. Blue fluorescence is more common in white or yellow. Some diamonds that fluoresce blue actually may seem blue-white light.

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Tags: Diamond, Fluorescence