I'll 2nd or 3rd buying a stone and then getting a band, either custom done or off the shelf.
I bought the center diamond from online, bluenile.com maybe? I dnno its been years.
Then we went together to Meyers Jewelers on Stringtown road and custom design a setting/band/etc. There are 4 smaller diamonds on either side and it kind of builds up to the larger center stone so that it doesn't catch on anything, etc. No issues, they were great, prices were great, and it's a very nice ring. It appraised much higher than what I had in it and like said above, Meyers does the trade up thing as well if I ever want to upgrade.
My .02.....