The Homeworld Dropship is a spaceship which transports Gems across the galaxy to other planets, mainly for the means of an invasion to establish a new Gem colony. They are flown by crews of Nephrites.
Homeworld dropships are large circular spaceships and bare a resemblance to flying saucers. The dropships have 3 extendable landing legs. At the front of the dropship there is a triangle entrance. The dropships come in different variations of color to match to the Diamond which is commanding them.
In "Jungle Moon", during Stevonnie's dream, some Ancient Gem Colony Ships can be seen beginning go to colonize an unknown planet. The ships belonged to Yellow Diamond and so are colored after her, they were also piloted by Nephrite Gem Squads. During the episode they are referred to simply as Drop Ships by Yellow and Pink Diamond.