Real 1680 Service Insert?

[tinpusher]

For all of the experts out there, can anyone confirm that this insert looks like a GEN service insert? I would rather not overspend for something from Cartel or other sources. I still am trying to figure out how all you figure out the small nuances between the different type of inserts. I believe the seller when he says that it is a GEN service insert, but given my level of skill in identifying differences, I would feel a lot better with some other confirmation. The seller just overlayed the bezel on his sub to show the look and it does not have a pearl for those wondering. Finally any ideas on what the going rate is for a GEN service insert?

Thanks!