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 6 March 2018 by Rebecca Carhart View On One Page Photo 10 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 10 Marchesa Feather Dress Marchesa Feather Dress ($2,995) Previous Next Start Slideshow Celebrity FashionAward SeasonShoppingShoppableAfterpartyAriana GrandeCelebrity Street StyleGet The LookSaint LaurentWinter Fashion