The pilot is a prequel to HBO's hit series Sex and the City about four best friends - played by Sarah Jessica Parker, Kristin Davis, Kim Cattrall and Cynthia Nixon - who confide in each other about their relationships and sex lives while living in New York.
Race to Witch Mountain actress AnnaSophia Robb stars in the pilot as a high school age Carrie.
The Carrie Diaries producers have brought in Gossip Girl's costume designer Eric Daman to translate Carrie's popular style to the new pilot.
"It's a rare invitation to dress a character whose reputation truly precedes her," Daman said.
"Having played a hand in designing for the Carrie we know and love, I am honoured to be chosen to carry the torch - to illuminate the woman we know by discovering the young lady she was."
The Carrie Diaries also features Katie Findlay, Ellen Wong, Austin Butler and Doctor Who star Freema Agyeman.
> Sarah Jessica Parker approves of Sex and the City prequel, says star
Watch the trailer for Sex and the City 2 below: