About 24 hours after sharing a photo of herself on a tropical vacation with her sister and friends, Sofia Richie revealed that it wasn't just any casual getaway—it was actually an engagement trip.

Elliot Grainge proposed to Richie with an elaborate candlelit sunset scene and the couple shared images of the cute moment. 

As for the engagement ring, it's a sizeable emerald-cut diamond with a thin band. True to the tropical theme, Richie wore a pretty floral dress in the photos and couldn't look any cuter. Grainge is the founder of a record label, while Richie has been busy with her modeling career. Scroll down to see the photos and get a close-up look at Sofia Richie's new engagement ring.