Global Gem Testing Laboratory Co. Ltd.

Recommendations and reviews from 1 person

• Referral from February 20, 2014
  

  David S. asked:

  Hello, someone do you know a jeweler or specialist in gem that evaluates the value of precious, semi-precious and jade stone ;I 've already tried on down Silom but 2 jewelers were unable to detect false peridot I had put in a lot of true.

  

  Ling E. replied:

  https://www.facebook.com/ggtlaboratory

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