Some of my metalsmith teammates were showing up well when there was a true Fine Jewelry section, and we theorized some of it had to do with price. Your stuff SHOULD be showing up in there, if it were based on that, obviously. I've got a few pieces that, based on that theory, should be in there, but they're not.
If I knew what bit of unicorn dust I needed to sprinkle on my shop to make Etsy admin love me, I'd do it.