Diamond fluorescence refers to the glow a diamond emits under ultra-violet (UV) light, often seen as a blue hue. The GIA has five fluorescence grades: None, Faint, Medium, Strong, and Very Strong. While 30% of diamonds exhibit this glow, its impact varies: it can enhance a diamond’s color or cause a hazy appearance. Understanding fluorescence … Continue reading What Is Diamond Fluorescence (And Why It Matters)?