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The Moussaieff Red Diamond (formerly known as the Red Shield Diamond) is a diamond measuring 5.11 carats (1.022 g) with a triangular brilliant cut (sometimes called a trillion or a trilliant cut), rated in color as Fancy Red by the Gemological Institute of America. It is the world's largest known red diamond, the rarest of all diamond colors. [1]
Found above ground in Lençóis: 1895: Eventually sold to I. K. Gulland of London, where it was broken up into small pieces as industrial diamond drills. [7] 3106.75: Cullinan Diamond South Africa: Premier Mine: 1905: British Crown (I and II) and Charles III (III–IX) The largest gem-quality diamond ever discovered. 2492 [8] Motswedi Botswana ...
The largest diamond found by a park visitor in the Crater of Diamonds State Park in Arkansas since 1972, when it was established as a state park. It was found by W. W. Johnson of Amarillo, Texas in 1975 and was a 16.37 carats (3.27 g) white diamond, but it has since been cut into a 7.54 carats (1,510 mg) marquise shape.
An Arkansas man who picked up what he thought was a piece of glass at a state park says he later learned his jelly bean-sized find was something much more valuable: It was a 4.87-carat diamond.
The Freedom Diamond, the largest faceted diamond to originate in the U.S., was mined from Northern Colorado in 1997. Now, it's in our nation's capital
A 2,492-carat diamond was unearthed at Botswana's famed Karowe mine this week by Canada's Lucara Diamond, one of the largest stones ever.. Lucara Diamond, in a news release Wednesday, said the ...
The Jones Diamond, also known as the Punch Jones Diamond, The Grover Jones Diamond, or The Horseshoe Diamond, was a 34.48 carat (6.896 g) alluvial diamond found in Peterstown, West Virginia by members of the Jones family. It remains the largest alluvial diamond ever discovered in North America.
There are a limited number of commercially available diamond mines currently operating in the world, with the 50 largest mines accounting for approximately 90% of global supply. [1] Diamonds are also mined alluvially over disperse areas, where diamonds have been eroded out of the ground, deposited, and concentrated by water or weather action.