If the divorce has been pronounced prior to the consummation of marriage, the woman is not required to observe any iddah, and she is free from the marriage bond. This is explicitly stated in the following verse:
"O you who believe! If you marry believing women and then divorce them before you have consummated the marriage, you have no reason to expect, and to calculate, any waiting period on their part: Hence, make [at once] provision for them, in a decent manner." (Qur'an: 33: 49).
So all the latter pronouncements indicating divorce are simply absurdities; they have no legal effect; as the woman is already a stranger, and you have no authority over her.
Having said this, I must also point out that it is important for the person who divorces a woman before consummating the marriage to give her some financial gift as it can be readily inferred from the verse cited above.