Not only was it demure and elegant, the timeless dress proved to be flattering, ladylike and positively perfect for the occasion.
Needless to say, every woman in the world wanted to get her hands on it, and according to a recent article in Vogue UK, this tremendous demand almost drove London-based brand Issa to bankruptcy.
The article references an interview with Issa chairwoman Camilla Al Fayed who explains that the small company, founded by designer Daniella Helayel, was so overwhelmed by the duchess' popularity that "the business couldn't cope."
Al Fayed goes on to say that there was also "no business model" for the brand.
And while the royal fashion moment certainly put the chic brand on the map, news of a business that unstable seemed a bit off to us.
So we dug a bit deeper to get the scoop on the supposedly shaky scenario for the label, past or present.
A rep for the brand tells us that she believes Camilla was misquoted in the Vogue article and that "the company was never almost bankrupt."
We learned that Camilla was brought on board a few years ago to add structure to the business so that Daniella could focus on design, among other areas. And while there was obviously a shortage in the popular engagement dress design that particular season, they quickly replenished stock and even added maternity sizes once Middleton announced her pregnancy months.
The source also confirms that "business has never been better" and that it was "really wonderful" for the company when Kate wore their design.
So there you have it!
Would you wear Kate's engagement dress?