Revelation 4:3

Context4:3 And the one seated on it was like jasper 1 and carnelian 2 in appearance, and a rainbow looking like it was made of emerald 3 encircled the throne.
Revelation 21:20
Context21:20 the fifth onyx, 4 the sixth carnelian, 5 the seventh chrysolite, 6 the eighth beryl, 7 the ninth topaz, the tenth chrysoprase, 8 the eleventh jacinth, 9 and the twelfth amethyst.
1 tn Grk “jasper stone.”
sn Jasper was a semiprecious gemstone, probably green in color (L&N 2.30).
2 sn Carnelian was a semiprecious gemstone, usually red in color (L&N 2.36).
3 tn Or “a rainbow emerald-like in appearance.”
4 sn Onyx (also called sardonyx) is a semiprecious stone that comes in various colors (L&N 2.35).
5 sn Carnelian is a semiprecious gemstone, usually red in color (L&N 2.36).
6 sn Chrysolite refers to either quartz or topaz, golden yellow in color (L&N 2.37).
7 sn Beryl is a semiprecious stone, usually blue-green or green in color (L&N 2.38).
8 sn Chrysoprase is a greenish type of quartz (L&N 2.40).
9 sn Jacinth is a semiprecious stone, probably blue in color (also called “hyacinth,” but that translation is not used here because of possible confusion with the flower of the same name). See L&N 2.41.