Along with the 4C’s of a diamond, its fluorescence is considered as one of the factors used to determine its quality. Diamond Fluorescence can be graded from none, faint, negligible, moderate to strong or very strong. Usually moderate or strong fluorescence affects a diamond's appearance resulting in low clarity or slight haziness, hence making the diamond cost cheaper than lower fluorescent diamonds.
Image Courtesy: http://www.blueminer.com/images/diamond-fluorescence.jpg
Arguments have continued among gemologists about how fluorescence affects the quality of the stone. Some gemologists say that this factor should not be considered while purchasing the stone as it least affects its appearance. Additionally, according to some gemologists, higher fluorescence results in enhanced beauty of the diamond while some believe vice-versa. Hence this factor is considered as a negative trait by some of the gemologists and consumers while a positive one by the rest.
The colors produced by the fluorescence of the diamond are usually blue, white or yellow. The color which is seen more often is blue. The least noticed colors are yellow and white. These specifics are true for colorless diamonds. Colored ones emit different shades/colors depending on their original color. For example, Pink colored diamonds emit bright orange color when subjected to UV light.
Even though a strong fluorescence may make a diamond look more sparkling and brilliant depending on its color and clarity, while buying a loose diamond or diamond jewelry, it is usually advised to go for none or faintly fluorescent diamond to be on a safer side.
No comments:
Post a Comment