A diamond's coloration is just how naturally white the stone appears. Most white diamonds in nature tastefully show a faint hint of yellow. When talking about a "colorless" diamond, it doesn't display any notable hues – these are typically quite rare. The industry regulates color grading by comparing each rock to a master set. Then assign it a letter anywhere from "D" (no hue) to "Z" (light yellow).
Diamonds that fall into the "colorless" and "near-colorless" range are the only ones that Dórnor accepts. In other words, D color diamonds, E color diamonds, F color diamonds, G color diamonds, H color diamonds, and I color diamonds are the only ones Dórnor will accept for rings. Due to this, diamonds with a borderline color grade receive a more conservative rating.
GHIJ: Near Colorless
KLM: Faint Yellow
NOPQR: Very Light Yellow
STUVWXYZ: Light Yellow
Does Diamond Color
Color is the second most essential 4Cs because the color grade directly affects the stone's appearance. For example, diamonds with a poor color grade can appear slightly yellow instead of the desired brilliant white. Additionally, Dórnor will not accept stones exhibiting strong or excessive fluorescence, which, in natural lighting, can give diamonds a milky appearance.