Blessed has a lower breaking rate.

Lucky has a chance of upgrading to levels at once.

i know whats easier, ask steam kaalan or dakkon ^^ :D

isnt lucky pink on xir?

Please don't double post, thebomba.

The stones have these effects...

Normal: no special effects.
Blessed: decreases the chances of destroying the weapon on failure.
Lucky: Increases the chancese of skipping a level, i.e. +1 immediately becoming +3.

Hope this helps.