Gigi studied law before turning to creative writing. Her first book, The Intentions Book (a novel) was shortlisted for the 2013 New Zealand Post Book Awards and longlisted for the IMPAC Dublin Award and the Commonwealth Prize. Her second book Feverish was a work of creative non-fiction, published in 2018. Gigi's second novel, A Good Winter won the Michael Gifkins Prize. She has a PhD in Creative Writing and various law degrees.