U NEED TO GO TO THE UNSEEN GOTO ALL THE ROOM IN ONE OF THOSE ROOMS U WILL FIND A ROUGH CUT
CRYSTAL BUT U WILL HAVE TO GO UPTO ALL THE CRYSTALS THAT R NOT IN THE MACHINES U WILL
FIND IT IN AMONG THEM THEN TAKE THAT CRYSTAL UP TO THE TOP FROM WHERE U FIND IT AND THERE
WILL BE A CRYSTAL CUTTING MACHINE U WILL GET THE BLUE GEM FROM THE ROUGH CUT CRYSTAL