The world of the Lustrous is beautiful and sparse. Located on an island that resembles a curved paintbrush smear, the Lustrous were the only beings suited for such an inhospitable environment, or so their creation story says. Their only requirement is sunlight.
With so few living things in their world, Land of the Lustrous gives strong billing to what little flora and fauna still exist. Nearly all of them are used as visual storytelling aids, the most obvious being the butterflies that pop up at different moments during lead gem Phosphophyllite’s (Phos) transformation. The trees in their world are dead, but flowers are peppered throughout the series’ landscape similar to Phos’ butterflies, adding further depth to the gems’ plight.