17. He measured its wall. According to human measurement, which the angel was using, it was 144 cubits.
18. Its wall was made of gray quartz. The city was made of pure gold, as clear as glass.
19. The 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,
20. the 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.