Solution:Jean-Baptiste Tavernier (1605-1689 A.D.) was a 17th century French gem merchant and traveller. He elaborately discussed about diamonds and diamond mines of India.Jean-Baptiste Tavernier was a French gem (particularly diamond) trader and traveller in the 17th century. He made six travels to Persia and India throughout his lifetime. Between 1638 and 1643 AD, during his second voyage, he came to India and travelled as far as Agra before arriving in the Kingdom of Golconda.
He also paid a visit to the Shahjahan's court and went on his first excursion to the diamond mines. Tavernier wrote Les Six Voyages de Jean-Baptiste Tavernier in 1675 at the behest of his patron Louis XIV (Six Voyages, 1676).
In his book, he goes into great detail on diamonds and Indian diamond mines. He is famous for discovering and purchasing the Blue Diamond, which he later sold to Louis XIV of France.