Revelation 4:3
He who was seated on it was in appearance like a jasper and a sardius; and 'round the throne there was a rainbow' of the color of an emerald.
Revelation 10:1
Then I saw another mighty angel, descending from Heaven. His robe was a cloud; over his head was the rainbow; his face was like the sun, and his feet like pillars of fire;
Revelation 21:11
Its brilliance was like that of some very precious stone, like a jasper, transparent as crystal.
Revelation 21:19-20
The foundations of the wall of the City were ornamented with every kind of precious stone. The first foundation stone was a jasper; the second a sapphire; the third a chalcedony; the fourth an emerald;