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Volume 9 Issue 1
Mar.  2007
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LU Yu-gang, MAI Xiao, TAN Yong, CHEN Mei-hua. Tentative Experiment of Brown Diamond under HTHP Treatment[J]. Journal of Gems & Gemmology, 2007, 9(1): 27-30.
Citation: LU Yu-gang, MAI Xiao, TAN Yong, CHEN Mei-hua. Tentative Experiment of Brown Diamond under HTHP Treatment[J]. Journal of Gems & Gemmology, 2007, 9(1): 27-30.
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Tentative Experiment of Brown Diamond under HTHP Treatment

  • 1. Gemmological Institute, China University of Geosciences, Wuhan 430074, China;

  • 2. Zhejiang Provincial Gold and Jewelry Inspection Station, Hangzhou 310013, China

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  • Received Date: January 18, 2007
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    • Abstract
  • In the paper,taking the Nova diamond,GE POL diamond and gray diamond for example,the mechanism of improving colour on diamond is disscussed from the angle of defect in crystal lattice.The tentative experiments of brown diamond samples under HTHP treatment are developed by using the synthetic equipment.The characteristics of IR and Raman spectra of brown diamond samples before and after HTHP treatment are also tested.The mechanism of improving colour is preliminarily analysed in order to offer more reference informations for the futher experiments of HTHP treatment.
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    • References (14)
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