When it comes to buying a diamond, you may have heard the term 'fluorescence' being thrown around. But what does it mean? Is it good or bad? In this article, we'll explore the phenomenon of diamond fluorescence and help you understand how it affects the value of diamonds. Fluorescence is the brightness that can be seen when a diamond is exposed to ultraviolet (UV) light. Approximately 30% of diamonds will show some degree of fluorescence when exposed to UV light.
The GIA (Gemological Institute of America) rates diamond fluorescence on a scale from None, Weak, Medium, Strong and Very Strong. So why do some diamonds shine under UV light? It's the same principle as how UV light makes whites look whiter and blacklight posters shine. In the same way, some diamonds fluoresce when under UV light.
Is diamond fluorescence good or bad?The answer to this question depends on the intensity of the fluorescence and the color grade of the diamond.
Generally speaking, strong blue fluorescence can make a diamond appear hazy or oily under normal lighting conditions. This can make the diamond appear less transparent and can affect its color grade. However, if you're looking at diamonds with an H color grade or lower, medium blue fluorescence can actually help counteract any yellowish tint and make them appear whiter. In effect, this will cause the color and appearance of the diamond to have a higher color grade.
It's also important to note that strong blue fluorescence is not as common as you might think when talking about diamonds that are H and below. Studies have shown that even strong blue fluorescence is almost always completely undetectable to the average diamond consumer. When comparing diamonds to each other, you will definitely see a difference between a diamond with a strong fluorescence and one with little or no. Be sure to ask to see the diamond in a variety of different lighting settings, if possible.
Should I buy a diamond that exhibits fluorescence?The answer to this question depends on your personal preference and budget. If you're looking for a more affordable option, then buying a diamond with fluorescence may be an option for you.
However, if you're looking for a higher quality diamond, then it's best to avoid diamonds with strong or very strong blue fluorescence. Before buying a diamond, get personal buying advice from industry veterans. We'll help you get the best diamond for your money. In conclusion, it's important to remember that brilliance and sparkle are determined by the quality of the cut and not by whether the diamond has the ability to shine with black light. Fluorescence can cause diamonds to shine brighter than those without fluorescent properties, but it's important to consider all factors before making your purchase.