The Kohinoor diamond currently weighs 105.6 carats (21.12 grams).
Before being recut in 1852, the Kohinoor diamond was significantly larger. Supervised by Prince Albert and with technical direction from Queen Victoria's mineralogist, James Tennant, the recutting process took 38 days. This process, costing Albert £8,000, reduced the diamond from its original 186 old carats (equivalent to 191 modern carats, or 38.2 grams) to its present size.
In summary, the Kohinoor's current size is 105.6 carats (21.12 g), a significant reduction from its original estimated size before recutting.
