Jean-Baptiste Tavernier, a French traveller and gem merchant, extensively documented his travels to India in the 17th century. He wrote about various aspects of Indian society, culture, and economy, including detailed descriptions of diamond mines and the diamond trade in India. Tavernier's writings provided valuable insights into the diamond industry of India during his time. Francois Bernier (1625–1688): A French physician and traveler who visited India during the reign of Mughal Emperor Aurangzeb Jean de Thévenot (1633–1667): A French traveler who visited India in the 17th century. Abbe Barthelemy Carre (17th Century): A French traveler and envoy who visited India in the late 17th century.