When you buy a diamond, you may first look at cut, clarity, and color. But there is one more thing to think about: diamond fluorescence. This tells how the diamond acts under uv light. Some diamonds show visible light at that time.

When you buy a diamond, there are some things you need to know besides what it looks like. Diamond grading is a key part of this process. It is a way to look at the cut, color, clarity, and how many carats a diamond has.