Flag Diamond Ship is a planning label inside Banpresto, the name attached to a particular corner of its prize output: the glossy, glamour-minded figures of adult female characters that fill crane games. The two lines most associated with it are Glitter & Glamours, the long-running One Piece-led series, and Sweet Style Pirates, a sister line working similar territory, while a smaller set of figures carry the Flag Diamond Ship name directly rather than a line label.

As an internal label it keeps a low profile, surfacing mainly through Banpresto's prize portals and the figures themselves, but it functions as the through-line that ties those glamour prize releases together under one planning hand.