Diamond color is graded based on its lack of color. The less color, the better! The Gemological Institute of America (GIA) grades diamond color on a scale from D (colorless) to Z (light yellow or brown). Here's how diamond color is measured:
- Colorless Diamonds (D-F):
- D: Absolutely colorless. The highest and rarest grade, these diamonds are pure and completely devoid of color.
- E-F: Colorless. Only minute traces of color can be detected by an expert gemologist. These diamonds appear colorless to the naked eye.
- Near Colorless Diamonds (G-J):
- G-H: Near colorless. These diamonds have slight traces of color that are difficult to detect unless compared to higher-grade diamonds. They offer excellent value as they appear nearly colorless to the naked eye.
- I-J: Near colorless. Slightly detectable color, usually noticeable only when compared to diamonds of higher grades. They still offer good value and can appear colorless when set in jewelry.
- Faint to Light Yellow Diamonds (K-M):
- K-M: Faint to light yellow. These diamonds have noticeable color, even to the naked eye. They are less expensive than near colorless diamonds but can still be quite beautiful, especially in yellow gold settings.
- Very Light to Light Yellow Diamonds (N-Z):
- N-Z: Very light to light yellow. These diamonds have more visible color and are typically not preferred for engagement rings. They are less expensive and are often used in jewelry where the yellow tint is not as noticeable.
It's important to note that diamond color can be affected by the diamond's setting and the color of the metal it is mounted in. For example, a slightly yellow diamond might appear more colorless when set in yellow gold because the metal masks the yellow tint. When choosing a diamond, consider the setting and metal color to enhance the overall appearance of the stone.