This Hebrew noun denotes a red precious stone, traditionally rendered 'ruby' or 'carnelian,' though exact identification is uncertain. The name derives from its red color (from the root meaning 'to be red'). In Exodus 28:17 and 39:10, it is the first stone in the first row of the high priest's breastplate, representing one of Israel's twelve tribes. Ezekiel 28:13 lists it among the precious stones adorning the king of Tyre in Eden, the garden of God—a description of primeval splendor. The reddish hue made it highly valued in the ancient world, whether as carnelian (a red variety of chalcedony) or a true ruby.