Does Fluorescence Affect Diamond Value

How Fluorescence Affects Value of Diamonds. Sometimes, a diamond’s fluorescence will have no effect on its price, while at other times it will. Colorless diamonds, those with a color grade of D-F, are sold at a discount if they have a fluorescent glow underneath a UV light.

Does fluorescence make a diamond more valuable?

The short answer is that any presence of fluorescence in a diamond will negatively impact its value to some degree. The greater the fluorescence, the more it adversely affects the monetary value of the diamond.

Are diamonds with fluorescence cheaper?

Are Fluorescent Diamonds Cheaper? Yes and no. Fluorescent diamonds do trade at slightly different prices than non-fluorescent diamonds, but not the ones you want. I-M diamonds with strong fluorescence trade at a 2-3% price premium to non-fluorescent diamonds with similar color grades.