In Portrait of a Gentleman, the subject is depicted in a three-quarter pose, wearing a dark coat and a white cravat. The background is a muted, soft color that enhances the figure's presence. The use of light and shadow creates depth, highlighting the gentleman's facial features and attire.

The overall color palette is warm, with browns and creams dominating the scene. The painting is executed in oil on canvas, a common medium for portraiture during the 18th century. Stuart's technique involves smooth brushwork that captures the textures of fabric and skin. The dimensions of the painting are approximately 76 x 63 cm, making it a sizable portrait.

The artist's attention to detail is evident in the intricate rendering of the gentleman's clothing and expression. Gilbert Stuart was a prominent American portrait painter known for his ability to capture the likeness and character of his subjects. This work, likely created in the 1790s, reflects the Colonial American style that Stuart helped define. An interesting fact about this painting is that it may have been commissioned by the subject himself, a common practice among wealthy individuals of the time.

Stuart's portraits remain influential, shaping the American portrait tradition.