After making alternative characters and levelling I've come to think that there should only be 2 level type soul gems.
Soul Gem 1-49 (call it whatever)
Soul Gem V1-V16 (Grand Soul Gem)
Reason for this is when levelling character now days most players don't even stay on that same level range for that long so they surpass the previous soul gems to the next level tier. It becomes a waste of the previous soul gems because there's really no use for it anymore.
Selling to a merchant is not so much profitable at all or even if you're trying to list them on guild traders with the non vet soul gems, I can confidently say who would go for them over the Grand Soul Gem?
Edited by N1K3 on April 28, 2016 1:58PM