Irene Zisblatt, (born Irene Zegelstein 28th December 1929), is a Hungarian-born Jewess and internee in the Auschwitz-Birkenau labour camp. Irene Zegelstein was born in the resort town of Polena to a Jewish business owner. She is most well-known for writing the absurd fiction ‘The Fifth Diamond’ in which she claims to have swallowed and defecated diamonds a number of times. Her delusions also feature as part of Steven Spielberg’s USC Survivors of the Shoah Visual History Foundation. This pseudo-documentary has been exposed with documentary proof in The Last Days of the Big Lie.