How Do You Describe A Beautiful Dress?

I had this problem when I was writing my novel. I wanted one woman to be wearing a stunning dress for a particular scene but I don't have the slightest idea about women's clothing.

So I did a Google image search, found a woman in the kind of dress I wanted, then went to the page, used their sales information, and described what I was looking at.

Boy, what that lady hot!

According to me, beautiful dress is that in which you will look beautiful and comfortable too. That is why I always choose my favorite dress from my favorite brands in the US. They have an awesome collection of beautiful dresses i.e., Prom Dresses, Short Dresses, Curves Dresses, Pageant Gowns, Couture Dresses and many more...