It sounds like you're leveling them bit by bit. Are you made out of Gems? I level SSRs in two parts, ~6600 exp each. That's about level 37-39 depending.

Anyway, the only thing that really matters is that you have 3x Tiaras on whatever character has all five slots open. Nothing else comes even close to being important. Personally I wouldn't level up Accessories that don't have at least two useful Enigmas though.