A marble fireplace mantel is a decorative element that is placed above a fireplace to add visual interest and create a more cohesive look in a room. A simple design marble fireplace mantel is one that has a clean and straightforward design, without a lot of intricate details or ornamentation.

Simple design marble fireplace mantels may feature a smooth and unadorned surface, or they may have some minimal detailing such as a carved border or a simple design element such as a leaf or flower. They may be made of a single piece of marble, or they may be composed of multiple pieces that are pieced together.

Marble fireplace mantels are available in a range of colors, including white, grey, and black, and can be found in a variety of styles to suit different decorating tastes. Simple design marble fireplace mantels can be a particularly good choice for those who prefer a more minimalist or modern aesthetic, as they offer a clean and unfussy look.