<P> On the night of the sinking the diamond changes hands a few times between Rose and Jack, resulting in Jack being framed of its theft by Rose's fiancé Cal . As the ship starts to list dramatically it becomes quite clear that the unsinkable Titanic will indeed sink . With this in mind Rose's fiancé, Cal, returns to the suite and empties the safe placing the precious gem in his overcoat . Later on Cal puts this same coat on Rose as she enters a lifeboat, forgetting about the diamond in its pocket . It is not thoroughly stated whether or not Rose (Gloria Stuart) tells Brock Lovett about Cal emptying his safe along with the diamond, it is assumed she doesn't as Lovett doesn't have any follow up questions . At the end of the film, Rose walks alone to the stern of the salvage ship and opens her hands revealing both the necklace and Rose's identity as Rose Dewitt Bukater . While examining the necklace, Rose has a flashback to 1912 on her arrival in New York and discovers the necklace in the overcoat . Returning to the present, Rose, with a smile, drops the necklace from her hand into the water presumably above the Titanic wreck site . </P> <P> London - based jewelers Asprey & Garrard used cubic zirconias set in white gold to create an Edwardian - style necklace to be used as a prop in the film . Asprey & Garrard produced and designed the necklaces: the result was three different and unique designs . Two of their designs were used in the film while the other went unused until after the film had been released . The three necklaces are commonly known as the original prop, the J. Peterman necklace, and the Asprey necklace . The three necklaces are all very similar but have distinguishable differences . </P> <P> The original necklace was the necklace seen throughout the film . This necklace has a large London - blue stone cut into a trillion / cleftless heart surrounded by white round cut cubic zirconias set in white gold . The chain is composed of a mix of round, pear, and marquise cut white cubic zirconias . The bail on this necklace was a heart cut white cubic zirconia attached to a white round cut stone which was attached to the cage on the main stone . </P> <P> Due to The J. Peterman Company's acquisition of this particular necklace through the sale of props from the film, this design is often referred to as the J. Peterman design, though officially the necklace does not hold this designation . This particular design is another blue cubic zirconia; however, it is cut into the shape of a heart rather than a trillion cut . The main stone is surrounded by round cut cubic zirconias and features a white round cut stone at the top where it attaches to the chain . The chain is composed of white round cut cubic zirconias, with a larger inverted pear cut cubic zirconia as the bail . This particular design is featured in the film for a brief moment when Caledon retrieves the necklace from his safe during the sinking, this is the only time the necklace is seen on screen . This particular necklace is believed to still be in the possession of the J. Peterman Company . </P>

How much is the heart of the ocean worth