What is fluorescence and how does it affect the color of a diamond?
Fluorescence refers to those diamonds that produce a visible reaction when exposed to ultraviolet radiation. In laboratory experiments with both trained gemologists and individuals with no diamond experience (meant to represent the jewelry-buying public), no relationship was found between fluorescence and a diamond’s overall appearance. Diamonds with a strong or very strong fluorescence are a better value for the end customer because the market prices them slightly lower than diamonds with faint or negligible fluorescence.
