Oval Diamond stacking band

      *   *****   *     *        *  *     *  *     *   *****   
      *  *     *  *     *        *  *     *  **   **  *     *  
      *  *        *     *        *  *     *  * * * *  *        
      *   *****   *******        *  *  *  *  *  *  *  *        
      *        *  *     *        *  * * * *  *     *  *   ***  
*     *  *     *  *     *  *     *  **   **  *     *  *     *  
 *****    *****   *     *   *****   *     *  *     *   *****