I currently have a custom filter of this sort for my local version:
- Tools -> Edit Item Filters -> [New Filter]
- Your new blank filter will be a the bottom of the list.
- Setup a name for it like "Disable Trophy"
- Put in the pattern dialog: "Trophy" w/o the quotes.
- Uncheck "Additive Filter"
Now that you have the filter on your list, when looking at badge loot for example:
Disable all filters except for [Special Currency] -> [Emblems of Triumph] and [Disable Trophy]
This will give you a list of only Emblem gear that will be purchasable w/o Trophies.