Meaning only one item in the group can be equipped at a time! See the post by Fyreflyte. It explains why I couldn’t equip a charm with a Rune: Ascended Geomancer adornment at the same time than the Earring of the Terramancer. I got the following message when I tried: “You may only equip 1 Ascended Geomancer at a time.” Both have the Ascended Geomancer flag right after the Tier Tag. Which mean they are both part of the Ascended Geomancer Unique Equipment Group and only one of them can be equipped at a time. The thing is, the adornment doesn’t have the LORE-EQUIP tag and the plan was to buy 2 of them to equip both my charms. But thanks to my wisdom, and being burned before , I bought only one to see if it stacks with my earring. Lucky me, I didn’t lose any currency on this… And the LORE-EQUIP is not necessary on the earring the way I see it. Anyway, be mindful of this before acquiring any new items!