Revelation 21:19 & 20
The foundations of the city walls were decorated with every kind of
precious stone. The first foundation was jasper, the second sapphire, the third
chalcedony, the fourth emerald, the fifth sardonyx, the sixth carnelian, the seventh
chrysolite, the eighth beryl, the ninth topaz, the tenth chrysoprase, the eleventh
jacinth, and the twelfth amethyst.
Although we do not even know what some of these stones are, they
demonstrate the preciousness of the foundation of the gospel which is Jesus Christ.