Diamond Fluorescence:- Diamond Fluorescence refers to a diamond's tendency to emit a soft-colored glow when subjected to ultraviolet light. Diamond Fluorescence normally comes in the Blue Colors, Such as Medium Blue, Strong Blue, and Faint. A diamond can have yellow or even white fluorescence (other colors too). Roughly 30% of diamonds causes them to glow under ultraviolet light (UV) due to natural effect. https://shivshambu.net/pages/fluorescence