Christie's New York is displaying the largest flawless fancy vivid blue diamond ever to appear at auction.
Catherine, the Duchess of Cambridge, receives a traditional Maori welcome called a "hongi" from David Ellison after she arrived with her husband, Britain's Prince William, in Dunedin April 13, 2014. Prince William and his wife are undertaking a 19-day official visit to New Zealand and Australia with their son, Prince George.
Soldiers from China's first female rocket launching unit in training, April 3, 2014, the same day they became an official part of the nation's artillery having previously only been a temporary unit.
The 2014 UVU North Pole marathon takes place at a temperature of minus 30 degrees. Run over the classic 42.195km (26.2 miles) marathon distance, it is described as the world's coldest marathon.
The Duke and Duchess of Cambridge unveil a painting of Britain's Queen Elizabeth for her diamond Jubillee by Nick Cuthell at a reception at Government House Wellington, NZ.
People enjoy the famed cherry blossoms along the Tidal Basin in Washington April 9, 2014.
The heavy-duty truck market is usually seen as a barometer of the macro-economy, since it reflects the scale of infrastructure development. Although the Chinese truck market is slowly picking up from a downturn last year, it is still far from its level of 2010.
Bakers perform with their dough in Pizza World Championships in Italy
A 16-year-old student wielding two knives went on a stabbing rampage in the hallways of a Pittsburgh-area high school early on Wednesday, injuring 21 people before he was tackled by an assistant principal.
It was a recipe for successful military interaction, with light-hearted banter and easy conversation on the menu as US Defense Secretary Chuck Hagel savored traditional Chinese cuisine for his lunch on Wednesday at a noncommissioned officer school in Beijing.
The State Administration of Cultural Heritage announced its Top 10 list of China archeological discoveries for 2013 on Wednesday in what has been dubbed the Academy Awards of Chinese archeology.
Catherine, Duchess of Cambridge, attends a Plunket nurse and parents' group event with her son Prince George at Government House in Wellington.