Kate Winslet wore it on screen, Celine Dion rocked a $2.2 million real version. Titanic's storied blue gemstone ... was special," Asprey's then-head of jewelry Terry Davidson told Reuters of ...
The mammoth effort involved 12 dives to the real Titanic wreck site ... Also inside: How the stunning Heart of the Ocean necklace came to life and was auctioned to raise funds for one of Princess ...