Revelation 21:11

21:11 The city possesses the glory of God; its brilliance is like a precious jewel, like a stone of crystal-clear jasper.

Revelation 2:17

2:17 The one who has an ear had better hear what the Spirit says to the churches. To the one who conquers, I will give him some of the hidden manna, and I will give him a white stone, and on that stone will be written a new name that no one can understand except the one who receives it.’