σάρδιος G4556
sárdios · sar'-dee-os · Adjective
properly, an adjective from an uncertain base; sardian (3037 being implied), i.e. (as noun) the gem so called:--sardius.
1 Occurrence in the King James Bible
Revelation 21:20The fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, a topaz; the tenth, a chrysoprasus; the eleventh, a jacinth; the twelfth, an amethyst.