Revelation 21:14-20

14The wall of the city had 12 foundations. The 12 names of the 12 apostles of the lamb were written on them.

15The angel who was talking to me had a gold measuring stick to measure the city, its gates, and its wall.

16The city was square. It was as wide as it was long. He measured the city with the stick. It was 12,000 stadia  long. Its length, width, and height were the same.

17He measured its wall. According to human measurement, which the angel was using, it was 144 cubits.

18Its wall was made of gray quartz. The city was made of pure gold, as clear as glass.

19The foundations of the city wall were beautifully decorated with all kinds of gems: The first foundation was gray quartz, the second sapphire, the third agate, the fourth emerald,

20the fifth onyx, the sixth red quartz, the seventh yellow quartz, the eighth beryl, the ninth topaz, the tenth green quartz, the eleventh jacinth, and the twelfth amethyst.