While you probably picture diamonds as flawless, clear gems set in engagement rings, colorful diamonds — one of nature’s rarest and most captivating phenomena — dazzle with hues that rival the rainbow. What geological processes cause diamonds to appear in such a diverse range of colors? The answer lies miles beneath the Earth's surface, where diamonds are formed when intense heat and pressure force carbon atoms into rigid crystal lattice structures. However, this journey isn’t always flawless. T
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While you probably picture diamonds as flawless, clear gems …
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See for Yourself One of the World’s Rarest Red Diamonds at the Smithsonian’s Natural History Museum
See for Yourself One of the World’s Rarest Red Diamonds at the Smith…
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Smithsonian MagazineKayla Randall
Fancy color diamonds come in an astonishing array of shades, with natural forces combining in unique ways to produce nearly every hue imaginable. Just like mixing red and blue paint creates purple, various geological processes can work independently or blend together, resulting in a spectrum of colors. Learn more about pink, purple, and brown diamonds from Dr. Gabriela Farfan, the museum's Coralyn W. Whitney Curator of Gems and Minerals. | Smithsonian National Museum of Natural History
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Fancy color diamonds come in an astonishing array of shades, with …
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The 2.33-carat Winston Red diamond has just been unveiled at the museum and is the only Fancy red diamond on public view. Fancy red diamonds, boasting a coveted pure red color, are one of the rarest treasures of the Earth. Only 0.04% of fancy color diamonds submitted to the Gemological Institute of America (GIA)—an industry leader in diamond grading and gem identification—are graded as Fancy red, and the Winston Red is the 5th largest of them all. Researchers from NMNH, GIA Education, and Mines
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The 2.33-carat Winston Red diamond has just been unveiled a…
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Cut from a piece of rough that weighed more than 283 carats and with a vivid green color, the Lion of Merelani is a showstopper.Tsavorite garnets are mainly found in a small region that straddles Tanzania and Kenya. The mineral, which was discovered in 1967 by geologist Campbell Bridges, was named in honor of Kenya's Tsavo National Park. The vibrant green color comes from trace amounts of vanadium and some chromium.This amazing gem can be seen in a new installation in the Janet Annenberg Hooker
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Cut from a piece of rough that weighed more than 283 carats an…
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The Smithsonian Natural History Museum houses 147 million specimens — everything from pickled animals to priceless gems to dinosaur bones. But less than 1% of it's on display. The rest is hidden behind the scenes in what's called collections. But they're not just sitting in storage rooms collecting dust. The specimens are actively used for scientific research with real-world benefits, from preventing bird strikes to documenting invasive species. We went inside the collections to see how they acq
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