Koh-i-Noor Koh-i-Noor The Koh-i-Noor (; ), also spelt Kohinoor and Koh-i-Nur, is one of the largest cut diamonds in the world, weighing , and part of the British Crown Jewels. The diamond was originally owned by the Kakatiya dynasty. Probably mined in Golconda, India, there is no record of its original weight, but the earliest well-attested weight is 186 old carats (191 metric carats or 38.2 g). Koh-i-Noor is Persian for "Mountain of Light"; it has been known by this name since the 18th century. It changed hands between various factions in modern-day India, Pakistan, Iran, and Afghanistan, until being ceded
French Crown Jewels diamond cut in 1678 for Louis XIV and above all the Regent Diamond. The treatment of the Regent Diamond epitomised the attitude of the French Royal Family to the Crown Jewels. While the Regent Diamond was the centrepiece of the King Louis XV crown, and worn by him at his coronation in February 1723, Marie Antoinette, wife of Louis XVI, wore it in a black velvet hat. The Royal French Blue was transformed into the Hope Diamond now in the Smithsonian Institution in Washington, D.C.. With two remaining jewels of the Renaissance, the "Côte-de-Bretagne" red spinel and the "Dragon perle",