Okay--you asked for a million, so here come a million!
The rings in these photos are: The lab OMC in a repro edwardian setting I had my grandparents' OMC in for the past 20-some years; my grandmother's wedding band from the early 1920s (wow, it's more than a century old now!); the original OEC that my grandfather gave my grandmother, set in a period antique deco setting.
I think the repro Edwardian setting suits the OMC much better than the OEC--it made the OEC look too square, and the OMC is supposed to be square(ish). And my jeweler did a much better job with the prongs than the guy who set the OMC in the repro Edwardian setting twenty years ago. Now they're nice,, even, and pointy; back then they were an uneven mess. (I'd asked for double claw prongs, but that jeweler just snipped tab prongs in half and left them blobby.) I'm not sure if these photos are clear enough to see that, though.