20 the fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, topaz; the tenth, chrysoprasus; the eleventh, jacinth; the twelfth, amethyst.
Revelation 21:20 Cross References - RYLT
Revelation 4:3
3 and He who is sitting was in sight like a stone, jasper and sardine: and a rainbow was round the throne in sight like an emerald.