And for the daytime engagement, she dressed down a suit with the ultimate cool girl ... Letizia brightened her monochrome gray look with a subtle burgundy smoky eye and a natural pink lip.

Often pictured in a well-tailored trouser suit and carefully ... "If you're new to monochrome dressing, begin with neutral ...

Considering it's a two-piece matching set, a suit alone gets you halfway to mastering monochrome. But when you add a matching shirt or coat, you're putting the cherry on top of the sartorial sundae.

The 19-year-old actress made jaws drop to the floor this time around as well, with her monochrome skirt suit that she paired with a body hugging corset. Rasha Thadani looked like a million bucks ...