The model stood out from the star-studded crowd at Glamour's 2017 Women Of The Year Awards at the city’s Kings Theatre.
Wearing her blonde tresses down in a loose wave, the 27-year-old accidentally flashed her nipples after opting for a figure-hugging gown.
Iskra appeared to be going braless under the two-tone pink dress, which featured a striking silhouette design.
As well as a dramatic train and long sleeves, the Worcester-born stunner’s look came complete with a modest neckline and ruched detailing below the midriff.
Iskra also showed off plenty of thigh thanks to a side split, after teaming her frock with towering silver heels.
She polished off her look with lashings of metallic eye make-up before sharing a pre-red carpet video online.
Iskra told her 3.8 million Instagram followers she had got ready in just 30 minutes showing her gratitude to her female companion.
Meanwhile, Bella and Gigi Hadid, Drew Barrymore, Laverne Cox as well as Ashley Graham were also among the attendees.
The latter exposed serious cleavage as she stuck to the legs or chest rule in an eye-catching red trouser suit.
The A-list party saw Nicole Kidman take home The Icon gong, while Beyonce’s sister Solange won The Artist Award.