Nov 14 (Reuters) - Sally Beauty Q4 gross margin 51.2%. * Q4 sales USD 935.028 million vs. IBES estimate USD 935.8 million * Q4 operating earnings USD 82.266 million * Q4 EPS USD 0.46 * Q4 adjusted EPS USD 0.5 vs. IBES estimate USD 0.47 * outlook FY adjusted operating margin 8.5-9%