Which one of the following foreign travellers elaborately discussed about diamonds and diamond mines of India?

**Jean-Baptiste Tavernier** was a 17th-century French gem merchant and traveler who undertook six voyages to India and the East. He is renowned for his extensive and detailed accounts of diamonds and diamond mines in India. His work, 'Les Six Voyages de Jean-Baptiste Tavernier', provides invaluable information about the famous Golconda mines, the methods of diamond extraction, and the trade routes for precious stones, including descriptions of famous diamonds like the Koh-i-Noor, the Great Mughal Diamond, and the Blue Tavernier Diamond (which later became the Hope Diamond). The other travelers mentioned also visited India but were not primarily known for their elaborate discussions on diamonds and diamond mines: **Francois Bernier**: French physician and traveler, known for his accounts of the Mughal Empire and its society. **Jean de Thevenot**: French traveler, known for his general accounts of Persia and India. **Abbe Barthelemy Carre**: French missionary, known for his accounts of travel to India and Persia. Therefore, Jean-Baptiste Tavernier is the most appropriate answer.