Identification for the vivid yellow diamonds

Jeongho Song, Yury Yun, Ohsung Song

Research output: Contribution to journalArticlepeer-review


We propose a new reliable, fast, and low cost identification method for similarly looking 0.3ct vivid yellow color of natural, HPHT treated, and synthesized diamonds. Conventional optical microscopy as well as low temperature PL(photoluminescence), FT-IR, UVVIS- NIR, micro-Raman spectroscopy, and vibrating sample magnetometry(VSM) characterization were executed. We could not distinguish the natural diamonds from the treated or the synthesized stones with an optical microscopy, PL, FT-IR, and UV-VIS-NIR spectroscopy. However, we could identify the treated diamond with micro-Raman spectroscopy due to unique 1440 cm-1 peak appearance. VSM revealed easily the synthesized diamond because of its ferromagnetic behavior. Our preliminary propose on employing the Micro-Raman spectroscopy and VSM might be suitable for identification of the similar looking vivid yellow colored diamonds.

Original languageEnglish
Pages (from-to)493-497
Number of pages5
JournalJournal of the Korean Ceramic Society
Issue number6
StatePublished - Nov 2012


  • HPHT Treated
  • Raman spectroscopy
  • Synthetic
  • VSM
  • Vivid yellow diamond


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