The Heart Of The Ocean

The Heart of the Ocean necklace was featured in the 1997 blockbuster Titanic. The silent major role in the film is played by the heart-shaped blue diamond necklace, which eventually finds itself at the bottom of the ocean. Despite the fact that the stunning Heart of the Ocean is a fake diamond, it steals the show at the end of the film when Rose tosses it into the sea, where its name says it belongs.

Rose's jewelry in the movie does not contain a diamond. The prop is made of cubic zirconia and white gold, so it's not worthless, but it pales in comparison to Harry Winston's reproduction. With the success of Titanic, Winston created a replica of Rose's necklace for actress Gloria Stuart to wear at the 1998 Academy Awards. This necklace, unlike the prop, was made with a real 15-carat blue diamond.

The stone was set in a 56-carat white gold heart-shaped blue diamond with a colorless diamond frame. If it had been real, it would have been worth more than $350 million. It cost the studio roughly $9,400 to produce. The prop is still in the archives of the film studio.

Price: $20 million