To complement the gown's daring cut, Johnson wore a diamond necklace with an emerald charm from Roberto Coin and a matching emerald ring. She completed the look with $795 Gianvito Rossi pumps.

Dakota Johnson deserves a little recognition for the lengths she's willing to go to support her friends, because the story I'm about to share takes loyalty to another level. Slaven Vlasic / Getty ...

The actress—who is styled by Kate Young —recently frosted her Ferragamo little black dress with a $25,500 Roberto Coin ring. For the premiere of her new romantic comedy Materialists, Johnson ...