A Prismarine Brick Stairs block is a Prismarine Brick stair variant crafted from Prismarine Bricks, offering a refined blue-green aesthetic commonly used in underwater structures and ocean monument builds. It functions as a sloped block for smooth elevation transitions and can be mined fastest using a pickaxe; otherwise, it drops nothing.

Prismarine Brick Stairs can be crafted from Prismarine Bricks or obtained through stonecutting. They do not generate naturally in any structures. Additionally, they can be placed under a note block to produce a bass drum sound.