sap•phirePronunciation: (saf'īur), [key]
any gem variety of corundum other than the ruby, esp. one of the blue varieties.
a gem of this kind.
the color of this gem, a deep blue.
resembling sapphire; deep blue: a sapphire sky.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.