Before Week Seven’s focus on “Diplomacy” comes to an end, Chautauqua Dance associate artistic director Mark Diamond will relate diplomacy to Chautauquans in a way no speaker would have attempted.

NCDT dancers will perform Diamond’s “The Decision Maker” to open their final show of the season, which begins at 8:15 p.m. Saturday in the Amphitheater. Dancers will be accompanied by the Chautauqua Symphony Orchestra, with guest conductor Grant Cooper.