Gem Dusting on experienced gems should award more dust.

[MrMyther]

This would provide reason to keep levelling up excess gem duplicates, and remove some of the friction when actively grinding to access the current and future gem content.

Id imagine each level of a gem would increase its dusting reward further - keeping the lv1 gems at 100 dust, while giving levels 2 and 3 (also 4 and 5 if they get used) additional dust drops to accommodate for their increasing experience requirements.
This could look something like: 100 at lv 1, 200 for lv 2, and 400 with lv 3 (with 800 and 1600 for lv 4 and 5)

[MrMyther]

Yippee :)!!