Members of the public had the opportunity to see Koh-i-Noor in 1851 when a great exhibition was held at Hyde Park, London, in the Armlet given to Victoria. It represented the power of the British Empire and took pride in its eastern part. Main gallery. Its mysterious past and advertising value - 1-2 1-22 million attracted a large crowd. At first, the stone was placed inside a guilded birdcage, but after complaints of its dilapidated condition, Koh-i-Noor was moved to install black velvet and gas lamps in the hope. Despite this, the flawed and disproportionate diamond still failed to please the audience.