Explanation:

Jean-Baptiste Tavernier (1605 – 1689) was a 17th-century French gem merchant and traveller Tavernier, a private individual and merchant traveling at his own expense, covered, by his own account, 60,000 leagues (120,000 miles in making six voyages to Persia and India between the years 1630 and 1668.
Tavernier is best known for his discovery or purchase of the 116-carat Tavernier Blue diamond, in 1666. The diamond was certainly Indian in origin and likely sourced by Tavernier in 1666[4] at the Kollur mine in Guntur district of Andhra Pradesh.
Tavernier sold it to Louis XIV of France.