Revelation 21:14-20

14The wall of the city had twelve foundations, and on them were the names of the twelve apostles of the Lamb. 15The angel who talked with me had a measuring rod of gold to measure the city, its gates and its walls. 16The city was laid out like a square, as long as it was wide. He measured the city with the rod and found it to be 12,000 stadia in length, and as wide and high as it is long. 17The angel measured the wall using human measurement, and it was 144 cubits thick. 18The wall was made of jasper, and the city of pure gold, as pure as glass. 19The 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, 20the fifth onyx, the sixth ruby, the seventh chrysolite, the eighth beryl, the ninth topaz, the tenth turquoise, the eleventh jacinth, and the twelfth amethyst.