or SSEF, is often required by buyers before they will make a purchase.

Colors

Sapphires in colors other than blue are called "fancy" sapphires. "Parti sapphire" is used for multicolor stones with zoning of different colors (hues), but not different shades.

Fancy sapphires are found in yellow, orange, green, brown, purple, violet, and practically any other hue.

Gemstone color can be described in terms of hue, saturation,

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