Revelation 4:3 And He who was seated on it appeared like jasper : i.e., possibly diamond. See and carnelian i.e., possibly a brilliant red stone, and there was a rainbow, resembling an emerald, surrounding the throne.

AUV⁽ⁱ⁾ ³ 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.