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Virtual currency's value soared to $400 per coin on 13 November from $13 in January.

Mined by De Beers, Pink Star breaks record set by Graff Pink.

Hercule Poirot to take on his last ever case with old companion Captain Hastings.

ICE to announce NYSE divestment plans shortly.

Oldest big cat fossil dating to five million years fills gap in evolutionary history.

Francis Bacon's painting, Three Studies of Lucian Freud has fetched $142m (£89m).

Malala Yousafzai and Lady Gaga are among the winners of Glamour Women of the Year Awards 2013. Check winners' full list here.

Combination would create world's biggest airline as measured by passenger traffic.

Feminist activists launch 'armed wing' against prostitution, Muslim extremism, and FGM.

Lady Gaga flew over the warehouse floor in Volantis.

Raefe Ahkbar murdered Yellow Dogs musicians Soroush and Arash Farazmand and Ali Eskandarian.

Google Glass is to get Play store music streaming through XE11 monthly software update, plus new headphones.

BoE, Treasury and Financial Conduct Authority to monitor exercise led by Credit Suisse.

New artistic renders show interior of Apple Campus 2, also known as the Spaceship.

The music manager helped the singers shake off their good girl images with the help of sexualisation and shock tactics.

Deloitte says level of expertise of capital's leadership unrivalled across globe.

Former Nazi dismissive of angry demonstrators outside his home in Queens.

Government to divest 10% of Indian Oil and 5% of Coal India to boost public finances.

New York Times and Variety critics praise QI frontman's performance as Malvolio on opening night.

Engineers claim super-fast jet could streak attain hypersonic speeds of Mach 6.

Rewind and Reframe campaign launched following controversy surrounding videos by singers including Miley Cyrus and Rihanna.

Pint-sized superstar Justin Bieber haggled over the price of eight prostitutes, refusing to pay the asking price of £11,200.

Terror in New York as gunman opens fire at packed rink.

Miss Venezuela Gabriela Isler was crowned Miss Universe 2013.

2013 may be the first year more people buy gifts "on the move" via smartphones and tablets.

Miss Philippines Ariella Arida extended her support for the victims of the storm.

Entrepreneurs say anti-rape underwear will make women feel safer for 'when things go wrong'.

Cave drawings made by hunter gatherers 4,000 to 10,000 years ago have been discovered in forests in Brazil.

Chenais stranded in Chicago after getting treatment for hormone disorder that led him to put on weight.

Miss Philippines Ariella Arida and Miss USA Erin Brady are the top favourites to win the title.