thre are three kinds of jewel damselfish belonging to the family Microspathodon. all of them grows to huge sizes, smallest being Microspathodon chrysurus, which grows to about 4 inches. the other two grows to 9 and 10 inches respectively. although will not reach such sizes in captivity, they will lose the spots when matured. M.chrysurus (the 4 inch adult) will still retain some of the spots..
unfortunately, your damsel will lose the spots in due time, and i do believe it is one of the 9 to 10 incher ones. its grey, unlike the two other blue counterparts from the atlantic. never the less, enjoy them now for the spots are beautiful.
and sorry to hear for your mini crash. come back stronger!