Rio Tinto Australia unveiled the largest red diamond ever found at their Argyle mine in Western Australia. NBCNews.com's Dara Brown reports.May 17, 2013
UP NEXT
Former Taiwanese leader on visit to China says war must be avoided
01:04
North Korean underwater drone can trigger radioactive tsunami, state media say
01:11
Watch: Runaway zebra caught on camera roaming streets of Seoul
00:58
North Korea fires missiles as U.S., South Korea military drills end
03:16
Watch: Japanese baseball fans go wild after World Baseball Classic win
01:09
Sandstorm puts Beijing's air quality at very hazardous level