We admit: our definition of sequin has been clearly limited. We believed they came in small, relatively demure sizes in an array of basic colors. Like those you can find in the inside of a kindergarten teacher's bra (if you haven't volunteered at your local kiddie school, then you are missing out on this undressing surprise). The Roland Mouret Tristan Sequined Dress ($3972) alters our entire way of thinking about these flashy circles of reflective material. This dress rocks the biggest damn sequins on the planet in some beautifully ethereal colors. And at this price tag, they must be worth their width in gold.