In titanic what painting did Caledonia hockley?

In "Titanic," Caledon Hockley, played by Billy Zane, possesses a painting titled "The Heart of the Ocean," which is a fictional blue diamond set within a painting of a woman. The painting itself is not explicitly named in the film; however, it symbolizes wealth and status, reflecting Hockley's character. The diamond plays a significant role in the story, particularly in connection with Rose, played by Kate Winslet.