NET

3 And the one seated on it was like jasper and carnelian in appearance, and a rainbow looking like it was made of emerald encircled the throne.

Darby

3 and he [that was] sitting like in appearance to a stone [of] jasper and a sardius, and a rainbow round^D9484 the throne like in appearance to an emerald.

Darby Bible Notes

round - I use 'round' for what is connected with anything (not necessarily united to it) as a centre, as the tire of a wheel, but 'around' is used for detached objects encircling.

KJV

3 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.