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Whereas colored stone dealers have faced such facts of life as heating, irradiation and impregnation, and pearl dealers long ago made peace with culturing, diamond dealers still seem to be grappling with the realities of enhancement.
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A diamond's color—or lack of color—is one of the components that affects its value. Diamonds with the least amount of color, graded D, E, and F, are rare and command higher prices than diamonds ... Ask the jeweler for care instructions when you buy an irradiated fancy color diamond. ... A few facts about HPHT Diamonds:
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Probably the largest irradiated diamond is the Deepdene, a 104.88-carat golden yellow cushion shaped stone. The diamond was sold in Switzerland in 1997 for $715,320. ... Facts About Black Diamonds...
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Green Diamond ... A06 Facts About Champagne Diamonds; Champagne Diamond... a06-facts-about-champagne-diamonds.php ... Probably the largest irradiated diamond is the Deepdene, a 104.88-carat golden yellow cushion shaped stone. The diamond was sold in Switzerland in 1997 for $715,320.
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Annealing of defects in electron-irradiated diamond. 4933. assuming one annihilation mode, and the derived lifetime (136 ps) is longer thanτf . These facts ...
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Formation and 87 K of defect clusters in electron-irradiated diamond at 16 J. Koike, T. E. Mitchell, and D. M. and ESR studies"`" of electron-irradiated diamond, respectively at 15 and 12 K, revealed the first recovery stage at -50 K and the second stage at -260 K upon isochronal annealing up to room temperature.
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Basic Diamond Facts ... Pink Diamonds – natural ones are very rare. Often these are painted or irradiated ... January 30, 2009 in Diamonds Bling or Anything, diamond education | Tags: 4 c's, Basic Diamond Facts, black diamonds, Blue Diamonds, canary diamonds, carbonado, diamond, Diamond Colors, diamond facts,
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Irradiated diamond: A diamond that has been subjected to bombardment by electrons, neutrons or other atomic particles. Its purpose is to make the diamond’s color more attractive and desirable.
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A diamond colored by a surface coating which masks the true body-color; the coating may be extensive (entire pavilion, for example), but is more often limited to one or two pavilion facets or a spot on the girdle.
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Diamond, composed of carbon, is the hardest natural substance in the world. Each carbon atom is surrounded by four neighboring carbon atoms in a tetrahedral coordination that is the result of a covalent bond and a face-centered arrangement in the cubic unit cell.
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