Gems for Cyrce's Circlet Not Scaling with Item Level

I received and upgraded my ring to 642 last night, and today was able to get my mastery gem. However, I notice that my gem (Fathomdweller’s Runed Citrine) still only grants 1510 mastery, whereas the one in the youtube video of a 642 Warlock I just watched gives 1789 mastery.

It turns out that my gem that gives all stats (Stormbringer’s Runed Citrine) is also having the same issue. Mine gives 472 stats to all secondaries, but the one in the video gives 657.

Has anyone else seen this and know how to fix it?

I see this “issue” if I don’t have my ring equipped (e.g. in PvP set), but as soon as I equip the ring the tooltips all correct themselves. If you’re still seeing it after equipping the ring, try un-socketing and re-socketing the gem in question.

This resolved the issue. It just needed to be equipped. No idea why that would make the difference.