Jean-Baptiste Tavernier

Tavernier is best known for his 1666 discovery or purchase of the 116-carat Tavernier Blue diamond that he subsequently sold to Louis XIV of France in 1668 for 120,000 livres, the equivalent of 172,000 ounces of pure gold, and a letter of ennoblement.
In 1669, Tavernier purchased for 60,000 livres the Seigneury (fief) of Aubonne, located in the Duchy of Savoy near the city of Geneva, and became Baron of Aubonne.
Tavernier's writings show that he was a keen observer and a remarkable cultural anthropologist. His ''Six Voyages'' became a best seller and was translated into German, Dutch, Italian, and English during his lifetime. The work is frequently quoted by modern scholars writing about the period. Provided by Wikipedia