Experience the spellbinding allure and timelessness of Earth's most valued and mysterious stone when the NATURE series airs "Diamonds" Sunday, September 30th at 8 p.m. (ET) on PBS (check local listings). <br /><br />The program examines the oldest, hardest natural substance in the world - diamonds -- from their beginnings in the core of the earth, through mining and acquisition, to the history of the most famous of these extraordinary gems. Actress Stockard Channing narrates the program. <br /><br />For more information, visit http:/<a class="link" rel="nofollow" href="http://www.pbs.org/nature">www.pbs.org/nature</a>
