Greater, Perfect Alchemy Orb?

I was thinking it might be nice for these to exist. Although in my mind rather than upping the modifier level they would:

greater orb of alchemy: upgrade normal or rare item to rare with 5 modifiers
perfect orb of alchemy: upgrade normal or rare item to rare with 6 modifiers


I could see how this breaks the pattern a bit with the normal, greater, perfect currencies, but I think it would be a nice QOL