The Hope Diamon is a large, 45.52-carat, deep blue diamond, currently housed in the Smithsonian Natural History Museum in the U.S. capital, Washington, D.C.. The diamond is legendary for the curse it supposedly puts on whoever possesses it. The Hope Diamond appears to be a brilliant blue to the naked eye because of trace amounts of boron within the diamond. The Hope Diamond exhibits red fluorescence under ultraviolet light and is classified as a Type IIb diamond.