I would like to know where this ring was made?

HI

I have an antique 18k gold and white sapphire cluster ring,
it has two hallmarks on the outside of the band which I can not figure out (I can not get good pictures of them) one hallmark is what looks like a spider in a square box and the other is also in a square box and looks like the letter J with some sort of tree branches on either side of it. I have been searching the internet but no luck, I would appreciate any help anyone could give me.
Raine