Which factors determine the pricing of fancy-color diamonds?

• A. Color intensity, hue, saturation, and size determine pricing.
• B. Only carat weight determines price.
• C. Treatments are irrelevant to value.
• D. Geographic origin determines all price.

Answer: (A)

Pricing fancy-color diamonds centers on how the color is expressed and how big the stone is. The most impactful factors are color intensity (how vivid the color appears), the hue (which color family the stone shows), and the saturation or purity of that color. A stone with a vivid, intensely saturated color in a rare hue will typically be valued much higher than one with a dull or washed-out color, even if the carat weight is the same. Size matters too because larger stones are rarer and cost more to mine and cut, so price usually rises with carat.

Treatments can change value because they alter rarity and consumer perception, so saying they’re irrelevant isn’t accurate. Geographic origin can influence price in some cases (like famous sources that command premiums) but it doesn’t determine all pricing, since color quality and size often have a stronger, more universal impact.

Thus, the emphasis on color characteristics—intensity, hue, saturation—along with size best explains how fancy-color diamonds are priced.