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WANG Ya-jun, SHI Bin, YUAN Xin-qiang. Measurement Precision of DC2000 Diamond Proportion Analyzer[J]. Journal of Gems & Gemmology, 2011, 13(1): 47-51.
Citation: WANG Ya-jun, SHI Bin, YUAN Xin-qiang. Measurement Precision of DC2000 Diamond Proportion Analyzer[J]. Journal of Gems & Gemmology, 2011, 13(1): 47-51.
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Measurement Precision of DC2000 Diamond Proportion Analyzer

  • Gemmological Institute, China University of Geosciences, Wuhan 430074, China

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  • Received Date: November 03, 2010
  • Revised Date: January 03, 2011
    Graphical Abstract
    • Abstract
  • In order to study the measurement precision of DC2000 diamond proportion analyzer,the proportions of the standard round brilliant cut CZ samples are measured by the DC2000 diamond proportion analyzer.The experiment results show that the measurement precision of the DC2000 diamond proportion analyzer is almost the same as that of the international similar products,which accords with the modern diamond cut grading requirements.The requirements are that the maximum deviation of diameter and total depth is within 0.01 mm.The maximum deviation of the table,crown,girdle,pavilion and culet is within ±0.1%.The maximum deviation of angles,including crown angle and pavilion angle,is within ±0.1°.The DC2000 diamond proportion analyzer could provide accurate and reliable data for the diamond cut grading and quality testing during the cut process.
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    • References (4)
  • [1]
    GB/T 16554-2003,钻石分级[S].
    [2]
    Ilene Reinitz,Kelly Yantzer,Mary Johnson,et al.Proportionmeasurement tolerances for the GIA Diamond Cut GradingSystem[J].Rapaport Diamond Report,2005,(5):34-39.
    [3]
    https://www.gia.edu/facetware/,2010-10-12.
    [4]
    袁心强,石斌.圆钻刷磨与剔磨的切工特征分析[J].中国宝玉石,2010,(3):96-99.
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