Why doesn’t Blender make a mesh ring?
There is a torus option which is close enough surely…
Go Space -> Add -> Mesh -> Torus
Tweak the options, and bam, mesh ring 
you can also add a bezier curve
turn off Front and back
and then dial up the Bevel Depth
(also change the Resolution to the desired amount)
then when it looks right
convert it to a mesh
there are a few more steps but it’s more interactive than the other option