Revelation 21:11; Revelation 21:18-19

11 It shone with the glory of God, and its brilliance was like that of a very precious jewel, like a jasper, clear as crystal.
18 The wall was made of jasper, and the city of pure gold, as pure as glass. 19 The foundations of the city walls were decorated with every kind of precious stone. The first foundation was jasper, the second sapphire, the third agate, the fourth emerald,