The 138.5 carat flawless Ruspoli Sapphire aka The Grand Sapphire of Louis XIV of France. Today the sapphire resides in the Paris Museum of Natural History. The sapphire is probably originally from Ceylon (Sri Lanka).
The Bismarck Sapphire gets its name from Countess Mona von Bismarck purchased from Sri Lanka around 1926, and is a 98.6-carat deep cornflower blue cushion-cut sapphire. In 1967 it was recut and reset by Cartier’s, as a pendant to a unique diamond and platinum necklace..