Some praised her fashion sense but others weren't impressed, criticising her for not wearing an American brand ... and for showing too much skin.
Mouret's website describes the "Rawlings" dress as being "orchid pink double faced satin" and "an easy choice for that evening affair when you think you have 'nothing to wear'".
It is yet another contrast to former First Lady Michelle Obama, who wore American designers and was consistently praised for her tasteful and classy styling.
WHY IVANKA'S FASHION IS OUT OF STYLE
Fashion has been a PR nightmare for Ivanka since her father entered the White House.
American retail giants Nordstrom and Sears dropped her clothing line after declining sales. Donald Trump and his top adviser Kellyanne Conway defended it.
And shoppers branded it "daggy", "basic" and heavily influenced by high-end designers.