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The diamond then changed hands between various empires in south and west Asia, until being given to Queen Victoria after the Second Anglo-Sikh War and the British East India Company's annexation of the Punjab in 1849, during the reign of the then 11-year-old Maharaja of the Sikh Empire, Duleep Singh.
This is a partial list of the largest non-synthetic diamonds with a rough stone (uncut) weight of over 200 carats (40 grams). [1] The list is not intended to be complete—e.g., the Cullinan (formerly Premier) mine alone has produced 135 diamonds larger than 200 carats since mining commenced.
The chapter describes scientific and professional examination of the Koh-i-Noor and how it was cut. There is a summary of David Brewster's critique of the diamond. Garrard & Co contracted the Dutch diamond company Mozes Coster to plan for cutting the diamond. Maudslay, Sons & Field provided an engine to grind it. James Tennant oversaw the process.
The Cullinan Diamond is the largest gem-quality rough diamond ever found, [2] weighing 3,106 carats (621.20 g), discovered at the Premier No.2 mine in Cullinan, South Africa, on 26 January 1905. It was named after Thomas Cullinan , the owner of the mine.
Diamond-weighing kit, with weights labelled in grams and carats. The carat (ct) is a unit of mass equal to 200 mg (0.00705 oz; 0.00643 ozt), which is used for measuring gemstones and pearls.
On 9 February 2016, Lucara Diamond announced that the stone had been named Lesedi La Rona which means "Our Light" in the Tswana language. The winner of the competition who named the diamond was Thembani Moitlhobogi from Mmadikola. [15] [16] [17] He stated that his reason for the name was that "the diamond is a pride, light and hope of Botswana ...
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Trimbakeshwar Shiva Temple in Nashik, India. The Nassak Diamond originated in the 15th century in India. [4] Although the date of the original cutting is unknown, the original cutting was performed in India and had sacrificed everything to size while giving the diamond a form and appearance similar to that of the Koh-i-Noor diamond.