Exodus 28:20

the fifth was sardonyx [i.e., an orange-colored stone similar to chalcedony]; the sixth was sardius [i.e., a reddish-colored stone also called carnelian]; the seventh was chrysolite [i.e., a yellowish- or greenish-colored stone]; the eighth was beryl [i.e., a stone of bluish-green color]; the ninth was topaz [i.e., a yellow or bluish-yellow stone]; the tenth was chrysoprase [i.e., a stone of greenish-gold color]; the eleventh was jacinth [i.e., a stone of purple or reddish-blue color]; the twelfth was amethyst [i.e., a purple- or violet-colored stone].

And He who was seated [on it] appeared like jasper [i.e., possibly diamond. See 21:11] and carnelian [i.e., possibly a brilliant red stone], and there was a rainbow, resembling an emerald, surrounding the throne.

It had the splendor of God [shining from it], and was as brilliant as a very precious stone, as crystal-clear as jasper.