20 the fifth, sardonyx; the sixth, sardius (or: carnelian); the seventh, chrysolite (or: topaz); the eighth, beryl; the ninth, topaz (or: peridot); the tenth, chrysoprasus; the eleventh, hyacinth (jacinth); the twelfth, amethyst.
Revelation 21:20 Cross References - JMNT
Revelation 4:3
3 And the One continuously sitting [was; is] for appearance (or: to [my] vision) like a jasper stone and a carnelian. And a rainbow, similar in appearance to an emerald, [was; is] around the throne.