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The Amarillo Starlight was found by W. W. Johnson of Amarillo, Texas in 1975 while he was vacationing at the park with his family. When unearthed, it was a 16.37 carats (3.274 g) white diamond, but it has since been cut into a 7.54 carats (1.508 g) marquise shape. Its value has been estimated between $150,000 and $175,000. [1]
Crater of Diamonds State Park is situated over an eroded lamproite volcanic pipe. The park is open to the public and, for a small fee, rockhounds and visitors can dig for diamonds and other gemstones. Park visitors find more than 600 diamonds each year of all colors and grades. [5] [6] As of 2015 over 75,000 diamonds had been found in the ...
In 1996 the largest diamond found at the mine was discovered. Named the "Colorado Diamond," it was a 28.3-carat (5.66 g) yellow stone and the fifth-largest diamond found in North America. The gem was cut and polished by legendary New York diamond cutter Bill Goldberg which yielded a 5.39-carat (1.078 g) faceted stone that sold for $87,500. [5] [16]
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"Bromide Pavilion" built by Civilian Conservation Corps in Platt National Park. Photo made July 12, 2007. In 1902, Orville H. Platt, a U.S. Senator from the state of Connecticut, introduced legislation to establish the 640-acre Sulphur Springs Reservation, protecting 32 freshwater and mineral springs, in Murray County, Oklahoma (then part of Indian Territory).
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The company described those diamonds as being so hard that they could only be cut using powder of other Arkansas diamonds. [4] The final result was a 12.42-carat (2.484 g) emerald-cut gem. It was characterized as M on the diamond color scale; this nominally corresponds to a faint yellow color, but the visual impression of Uncle Sam has been ...
About 80% of mined diamonds are already used for industrial purposes, as they might lack the quality to become gemstones that can be set into jewelry.