The Hope Diamond weighs 45.52 carats and is one of the most famous jewels in the world. Its recorded history goes back to the 17th century in France. The gem was cut into smaller pieces multiple times, so its appearance has changed. The French, deep blue diamond was stolen in 1792 and has exchanged ownership several times. As of 2019, gemologists have valued it at about 350 million dollars. It’s currently housed in the National Gem and Mineral collection at the National Museum of Natural History in Washington, D.C. Even so, there are no guarantees of perfectly guarding it from theft.