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Jewelry Blog

The Magnificent Jewels and Noble Jewels sale at Sotheby's Geneva will offer up "The Farnese Blue," a pear-shaped fancy gray-blue 6.16-carat diamond ensconced in history. 
The Farnese Blue was kept a secret within the long line of owners, their families and the family jewelers, hidden in a royal casket (we are unsure of whose casket in particular!). 
The diamond was originally uncovered in the Golconda mines of India, also home to the Hope and Wittelsbach diamonds. 
photo courtesy of Sothebys.
The Spanish government demanded wedding presents from its colonies for a suitable dowry for the wedding between the king and queen of Spain . In August of 1715, the Golden Fleet sailed from Cuba with endless riches including gold bullion and emeralds. But a hurricane destroyed most of the fleet with only one ship surviving, and the famed blue diamond aboard.
It finally made it's way to to the Elisabeth Farnese, the Queen of Spain as a gift on her wedding to King Philip V of Spain, grandson of Louis XIV, King of France.
The diamond spent the next three hundred years passing to Elisabeth and Philip of Spain's descendants, going through royal families in Spain, France, Italy and Austria.
One of the last owners of the diamond was Marie-Therese de France, first child of Louis XVI and Marie-Antoinette and their only progeny to live through the French Revolution. 
The diamond was placed in a diadem  adorned with diamonds belonging to Marie-Antoinette.
Photo courtesy of Sothebys.
Robert I, the Duke of Parma, passed the diadem to his son, Elias of Bourbon, Duke of Parma in 1907. It is now up for grabs to survive and thrive through the next centuries.
The fancy diamond should fetch between $3.7 million and $5.3 million but is so important and historical, we would not doubt it goes for much more.