Is this normal for gold-filled jewelry?

I bought some gold filled rings from a jewelry stand at a local craft fair and when I got home, I noticed that all 3 rings have extremely visible soldering seams on them. I paid over $200 for these 3 rings, 1 has an Australian opal in it with an apparently silver base, and the other 2 are pretty simple rings with no embellishments.

Did I get ripped off? Is this normal for gold filled jewelry?