Some diamonds radiate a visible light when viewed under long-wave ultraviolet light.
This so-called fluorescence is not taken into account for establishing the color or clarity grade.
However, a description of its strength and color is contained in the GIA report as an additional distinctive feature.
ID-Diamonds use only diamonds without fluorescence (none).
ID-Diamonds bvba, Rijfstraat 2- 4, B – 2018 Antwerp, Belgium, firstname.lastname@example.org