I own my stone, it's from GOG. I had issues with WF for my wedding band, and issues with Tiffany for my very original engagement ring. As far as setting issues:
After we returned the Tiffany ring, we went to a local jeweler my friend suggested, and we got my stone, and they made and botched about 4 settings before they finally got one right. Somehow we got stuck paying for all of that. I wore that for a while, til I needed work on it, bec there was something going on with the head that held the diamond. They changed the head for me but they used gold solder-and I am VIOLENTLY allergic to gold. They didn't want to replace it but we made them and we got stuck paying $800 in the end, with a ring that was mutilated. I ended up having to replace that setting elsewhere, and then about a year later it got stolen. So when I replaced my stone through GOG, they set it into a simple setting for me. I had a local guy resize it and they damaged it majorly. So I had to have it reset again, and that went horribly wrong. Then I decided if I was going to reset this thing, I was getting a good setting so I decided on the Vatche. And I found a local jeweler that was willing to help me out. And that's where we are now, with Vatche not producing good pieces for me.
IF I get my money back, and am not stuck still dealing with them, Ill probably have the local jeweler either CAD me something similar with a few changes to the design I'd like, OR order me something else that he has more faith in.