8 – The Heart of the Ocean – $17 million
You’d be forgiven for thinking that replicating a piece of made up jewellery in a movie would produce something a bit cheap and tacky. But no, as proved by London-based jewelers Asprey & Garrard having made a real-life version of Kate Winslet’s necklace in the movie Titanic. 103 diamonds, a 171-carat heart-shaped Ceylon sapphire and plenty of platinum add up to a sale price of $17 million.
