Feb 22 (Reuters) - Star Diamond Corp DIAM.TO :
* STAR DIAMOND CORP - RIO TINTO CANADA SAYS TEN CUTTER HOLE BULK SAMPLE PROGRAM NOW SUCCESSFULLY COMPLETED
* STAR DIAMOND CORP - RIO TINTO CANADA SAYS PROGRAM MET ITS OBJECTIVE OF IMPROVING CONFIDENCE IN DIAMOND GRADE OF PROJECT
* STAR DIAMOND CORP - NOTIFIED RIO TINTO CANADA THAT COMPLETION OF A COMPREHENSIVE DIAMOND BREAKAGE STUDY AND CERTAIN OTHER WORK REMAIN OUTSTANDING