Jerl said:
I'm seeing less than one page of results when searching wedding_band.
There is currently 11 pages of results under that tag, so it's a bit odd you're seeing less than one page of results.
Just a proposal, and I haven't bothered to check how worthwhile it might be under what is currently in the tags, but perhaps instead of drawing a band/ring distinction at this level it might be better to go up a level and have a tag that draws a distinction between simple band rings and decorated rings in general. The tag would implicate the ring tag regardless, but in terms of searching would enable people to perform a "ring -<new tag>" or "ring +<new tag>" search to divide between the two types.
As for what the new tag tags, I would imagine it probably would work better to tag the rings that aren't simply a metal band.
Going with or without my above proposal, it would probably be best to go with the name wedding_ring to keep it in line with the ring tag in general.