DIAMOND FLUORESCENCE WHAT IS DIAMOND FLUORESCENCE ？ Diamond fluorescence response is a natural reaction, the tomb was different and gem will appear. Some diamonds when they are exposed to ultraviolet light, visible light will show, this is the diamond fluorescence response. In most, different lighting conditions, diamond fluorescence is not seen with the naked eye, except that UV light, will be issued a slight light. ALL DIAMONDS WILL HAVE FLUORESCENCE ? Not all diamonds are with fluorescence. Data show that about 1/3 of GIA diamond is fluorescence response with varying degrees. DIAMOND FLUORESCENCE