Detecting HPHT Synthetic Diamond Using a Handheld Magnet

  title={Detecting HPHT Synthetic Diamond Using a Handheld Magnet},
  author={Kirk Feral},
  journal={Gems \& Gemology},
GEMS & GEMOLOGY WINTER 2012 Instruments used by gem testing labs to identify synthetic diamonds, such as the DiamondView and DiamondSure, are specialized and costly. Electronic diamond testers that measure a gem’s thermal conductivity to detect imitations are readily available to consumers, but these instruments cannot distinguish natural from lab-grown diamonds. Spec trometers, microscopes, polariscopes, and UV lamps are standard gemological tools that can be effective in detecting signs of… 

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