Revelation 4:3 in the King James Version
And he that sat was to look upon like a jasper and a sardine stone: and there was a rainbow round about the throne, in sight like unto an emerald.
Context
2 Immediately I was in the Spirit. Behold, there was a throne set in heaven, and one sitting on the throne
3 that looked like a jasper stone and a sardius. There was a rainbow around the throne, like an emerald to look at.
4 Around the throne were twenty-four thrones. On the thrones were twenty-four elders sitting, dressed in white garments, with crowns of gold on their heads.