She wears a delicate pearl necklace and a peach-colored dress trimmed with white lace, accented by a small floral corsage pinned to her bodice. Her gloved right hand rests on her lap, holding an open fan decorated in blue and white tones, while her left arm is draped casually along the armrest. A large mirror behind her reflects both her back and the opulent interior of the theater, including the golden balconies and an elaborate chandelier that glows above.

Rows of theatergoers, painted in quick, gestural marks, fill the curved balconies in the background, suggesting a lively crowd absorbed in the spectacle. The light falls warmly across the woman's face and shoulders, creating subtle shadows and highlighting the texture of her skin and the sheen of her dress. The brushwork is loose and fluid, especially in the background and the folds of the dress, where dabs and strokes of color suggest movement and the shimmer of artificial light.

Touches of red in her hair and the chair echo the dominant pinks and golds, unifying the composition and enhancing the sense of luxury and modernity. The composition brings the viewer close to the sitter, as if sharing the vantage point of her theater box, while the mirror expands the space and multiplies the perspectives within the scene. Woman with a Pearl Necklace in a Loge was painted by Mary Cassatt in 1879, during her years in France. The painting is associated with the Impressionism movement, as seen in the vibrant palette, interest in light effects, and the depiction of contemporary urban leisure.

The painting’s tipped perspective and cropped composition reflect the influence of Degas, with whom Cassatt shared artistic ideas.