The Heart of the Ocean, also known as Le Cœur de la Mer, is the fictional blue diamond which was originally owned by Louis XVI and cut into a heart shape after the French Revolution. Many pirates searched for this pendant, but now it can be yours. This large heart-shaped artificial sapphire is set among 26 faux diamonds, while the 18" inch necklace is also adorned with matching diamond stones. Adjustable clasp. Heart measures 1-1/2".