James Cameron's "Titanic" (1997) featured a blue diamond necklace called the "Heart of the Ocean," but that was a fictional invention for the film, and thus isn't among the real-life wreckage.

The digital model, created using state-of-the-art underwater scanning technology, forms the centrepiece of Titanic.

Titanic opens in the present day, which -- in addition to introducing the story about Brock Lovett's (Bill Paxton) quest to find the Heart of the Ocean diamond -- provides some background ...

The Titanic, a luxury British ship, hit an iceberg and sank early in the morning on April 15, 1912 Sophie Dodd is a writer for PEOPLE. She previously worked as an editorial assistant at PEOPLE ...