Revelation 4:2b-3a says, “there was a throne set in heaven, and upon the throne there was One sitting; and He who was sitting was like a jasper stone and a sardius in appearance.” Revelation 21:10-11 says, “And he…showed me the holy city, Jerusalem, coming down out of heaven from God, having the glory of God. Her light was like a most precious stone, like a jasper stone, as clear as crystal.”
In Revelation 4 our God sitting on the throne has the appearance of a jasper stone. In Revelation 21 the light of New Jerusalem is like jasper. The appearance of the whole city matches the appearance of God because the city is saturated with God.
The jasper of New Jerusalem is “a most precious stone” indicating that the whole city is most precious in God’s sight. New Jerusalem is most precious because it fulfills God’s eternal desire—a corporate expression of Himself in humanity. This desire was first indicated when God created man in His own image (Genesis 1:26-27). However, created man was like a photo, having the image of God but without the reality. To bring forth His corporate expression in man, the Triune God came as life into the men He foreknew and selected. This life regenerates us in our spirit (John 3:6), renews and transforms us in our soul (Romans 12:2), and will glorify us in our body (Philippians 3:21).
While the life of the Triune God is renewing and transforming us, it also builds us together (Ephesians 4:16) to be the corporate expression of the Triune God. We all, who are living stones, are being built together (1 Peter 2:5). As a result, the whole city shines as one most precious stone, not as millions of individual stones.