The Skinny on Diamond Fluorescence

Source: GIA website

Fluorescence can seem to be an intimidating subject when choosing a diamond, however armed with the correct knowledge it becomes clear that it's just another factor that needs to be taken into account and is ultimately owing to personal preference and budget.

What is Fluorescence?

In technical terms, fluorescence is the tiny particles in a diamond which most typically emit a blue light, when placed under UV lighting.

As graded by GIA, the fluorescence of a diamond is measured on a scale from None (no fluorescence), Faint, Medium, Strong and Very Strong. The strength of fluorescence in a diamond is not directly correlated to the colour or clarity of the diamond, meaning that the colour and clarity have no influence on the whether the diamond will have fluorescence or not. Diamonds of different colours and clarities can have exactly the same level of fluorescence.