by rock newbie » Mar 27, 2002 Since the GIA report does not have the crown and pavillion angles, how can I determine if a stone has an excellent cut? I've seen the 'ideal' and 'very good' ranges for the table and depth. However, being in the range does not necessarily mean a stone has an excellent cut. Is there a rule of thumb? I know I can have it appraised before making the purchase. Is there a quicker way to make the determination?