Popsugar Fashion Oscars Ariana Grande Black Feather Dress at Oscars Afterparty 2018 Ariana Grande's Oscars Afterparty Dress Cost $11,900 — but Damn, Was It Glamorous 7 March, 2018 by Rebecca Carhart First Published: 6 March, 2018 View On One Page Photo 4 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 4 Saint Laurent Feather Dress Saint Laurent Feather Dress ($11,900) Previous Next Start Slideshow Celebrity FashionAfterpartySaint LaurentOscarsMadonnaCelebrity Street StyleDressesGet The LookWinter FashionWinter