Tiffany Tang wore stunning blue colour gown but imitation?

Many female artistes wore stunning and glamorous gowns to attend Shanghai International Film Festival (上海電影節) yesterday (13 June). This included Mainland China actress, Tiffany Tang (唐嫣) who wore blue colour gown which showed her elegance. On Weibo, Tiffany's work studio used 'Ocean star' and 'full of fairy scent' to describe her.

However, someone was quick to point out Tiffany's gown was not