I was wondering if you cool cats could add a Check Mark to the left of the gems they have socket.
If the current gems in their gear fits the socket bonus, show a check mark to the left of the gems.
If the gems do not match, or they don't have gems in the item at all show a x mark.
You can easily just grab the x and check mark models from the ones you use for the belt buckles, extra blacksmithing sockets, and what not.
It's not a real big issue, and yes I know some people intend to not socket their gear to achieve the socket bonus because other options would outweigh the benefits from the socket bonus, but hey can be just another small upgrade to the site.