Which analogy is used to illustrate color saturation in colored diamonds?

• A. Water-glass analogy
• B. Coffee-stain analogy
• C. Milk in tea analogy
• D. Orange-juice analogy

Answer: (D)

Color saturation is how vivid or pure the color appears in a colored diamond. The orange-juice analogy fits best because it mirrors how intensity changes with concentration: when the juice is concentrated, the color is bold and vivid (high saturation); when it’s diluted, the color becomes lighter and less saturated. This directly parallels how a diamond’s color can range from a pale, washed-out hue to a deep, intense orange.

The other analogies don’t capture the idea of pure color intensity as clearly. Diluting with water tends to emphasize lightness rather than the pure saturation of the hue, and milk in tea or a coffee stain can imply changes in tone or an unintended tint rather than a straightforward shift in color purity.