A small guest bathroom can feel just as luxurious as a spacious primary en suite. Luxury is not defined solely by expensive materials, but by how thoughtfully those materials are used to create details that enrich the entire space. Here, readily available marble thresholds were customized on site to frame a mirror that extends to the ceiling, visually increasing the room’s height. Glass sconces mounted directly onto the marble illuminate and emphasize the natural stone. Carrara marble-look porcelain tile flanks the vanity from floor to ceiling, extending the focal point across the full width of the wall.