Fluorescent Brightener diamond fluorescence

In general , the diamond fluorescence is a relatively specialized problems, asked this question shows that you have a better understanding of the diamond . Most people on the level of understanding of the diamond is now still at the stage of literacy . So the time of  potassium stearate purchase are often very concerned about whether VVS, others are downplayed . Now makes China in the global diamond market is the most strange ...... diamond ring fluorescence effects of good or bad is another important indicator.
First, the fluorescence of the diamond is it? Important to you ? If in addition to the diamond 4C What is noteworthy place , then that is a fluorescent indicator ! Fluorescence indicator , English Fluorescence, is an important indicator , which affects the color of the diamond .
 Fluorescent indicator refers to vegetable stearic acid  the diamond will be issued under the intense ultraviolet blue light intensity. Fluorescence international level from high to low were none ( no ), faint ( weak ), medium blue ( medium blue ) / medium yellow ( medium yellow ), strong blue ( strong blue ) yellow ( strong yellow ) and other levels. For those who adhere to traditional perfectionist , the diamonds are not a fluorescence , ie fluorescence level indicators are none .
 In fact, China's new standards promulgated by the diamond has , though not on the fluorescence of strict , but absolutely clear requirements. Country by diamonds glow under UV light intensity classified as "strong" , "medium" , "weak ", "no " four levels . But most consumers do not understand , so I do not need this indicator , resulting in  white blowing agent identification of the identification certificate issued by the agency generally does not indicate the fluorescent indicator , it also gives many jewelers advantage of the loophole .
 However, there are a few people like abroad, strong blue diamond grade , will go to the designated special buy this diamond . Sometimes because of strong blue diamond will look cool ( not to mention the strong blue diamond grade levels also a lot cheaper than none