Revelation 4:3

James Moffatt - New Testament

the seated One resembled in appearance jasper and sardius — and round the throne a rainbow resembling emerald in appearance;

Cross References

Revelation 21:11

with the glory of God. The sheen of it resembled some rare jewel like jasper, clear as crystal;

Revelation 10:1

Then I saw another strong angel descend from heaven; he was clad in a cloud, with a rainbow over his head, his face like the sun, his feet like columns of fire,