One of the biggest mysteries that Harry, Ron, and Hermione had to solve in Harry Potter and the Deathly Hallows centered on finding a Horcrux made from something that had been owned by Rowena Ravenclaw, one of the four founders of Hogwarts. Luna Lovegood was critical in helping Harry figure out what the Horcrux was, which turned out to be the Lost Diadem of Ravenclaw.
Years earlier Lord Voldemort had tricked the ghost of Helena Ravenclaw, daughter of Rowena, to tell him where she had hidden the lost diadem. He found it, turned it into a Horcrux, then hid it in The Room of Requirements, where Harry unknowingly stumbled upon it during his sixth year of school.
Now, you can own a replica of Ravenclaw's Diadem. The Noble Collection has carefully recreated it so that yours will look just like the one from the final Harry Potter movie. It is made with high quality silver-plated brass.
The diadem is in the shape of a raven with open wings. The raven is adorned with white and blue crystals. Under the wings is the quote that is also the motto for Ravenclaw House: "Wit beyond measure is man's greatest treasure." It measures 14 inches long, and its height varies from 2 inches to 5 inches. You can wear the tiara, or keep it in the included display box.