Characteristics of Natural-Color Pink Diamonds with Orange Fluorescence

DOI

Bibliographic Information

Other Title
  • オレンジの蛍光を示す天然ピンクダイアモンドの特徴

Abstract

<p>Most natural-color pink diamonds exhibit blue fluorescence when exposed to UV radiation. Orange fluorescence is commonly observed in irradiated and heat treated color pink diamonds, including CVD synthetic diamonds. AGT Gem Laboratory examined 18 natural-color pink diamonds with orange fluorescence in 2006-2015. IR absorption spectroscopy confirmed the pink diamonds were all type Ⅱa. The most characteristic feature was a broad 507nm band in the UV-Vis absorption spectra at room temperature. In addition, at liquid-nitrogen temperature 575nm and 637nm absorption by NV centers were observed, however, 595nm absorption was not detected.</p>

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Details 詳細情報について

  • CRID
    1390564237991099392
  • NII Article ID
    130007395720
  • DOI
    10.14915/gsjapan.33.1-4_23
  • ISSN
    21898413
    03855090
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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