the Messenger of Allah ruled that one-third of the Diyah should be paid for a sightless eye that looks fine, if it is destroyed; one-third of the Diyah should be paid for a paralyzed hand if it is cut off; and one-third of the Diyah should be paid for a black tooth if it is knocked out.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَضَى فِي الْعَيْنِ الْعَوْرَاءِ السَّادَّةِ لِمَكَانِهَا إِذَا طُمِسَتْ بِثُلُثِ دِيَتِهَا وَفِي الْيَدِ الشَّلاَّءِ إِذَا قُطِعَتْ بِثُلُثِ دِيَتِهَا وَفِي السِّنِّ السَّوْدَاءِ إِذَا نُزِعَتْ بِثُلُثِ دِيَتِهَا