i was trying to put in a topaz 6 into my equips it was a emerld 6 and a peridot 6 is a diamond 6 i dont know about the rest
Topaz 6 = emerld 6
Peridot 6 = diamond 6
Ruby 6 = ruby 7
Garnet 6 = ruby 6
Sapphire 6 = topaz 5
Emerld 6 = emerld 7
Diamond 6 = Diamond 7
Everything is the same above
masks all work except for peridot 6
Edit: Also i tested with sade thats how i got the gems. I also droped the items with the gems in there so dont think i would keep them there only wooden swords with gems in there