Header for calibrated stones with the Emil Kreis & Co logo
A photograph of calibrated stones of different sorts with inset photographs of Juergen Schmidt inspecting at the cutting factory in Bangkok
Juergen Schmidt observes the cutting at the factory in Bangkok.


Our calibrated stone stock includes the following:

  • oval
  • octagon
  • rectangle
  • round
  • square
  • pearshape
  • marquise
  • heartshape
  • trillion

Our calibrated stones are cut in Bangkok, at our own German managed factory. Our Bangkok factory affords the buyer our high standard of quality in the cut at the most affordable prices.

We specialize in having a large stock in calibrated Aquamarines in Idar-Oberstein, Germany in all sizes and qualities, with a guaranteed high quality cut. We also have Tanzanites as well in Red and Green Tourmalines in calibrated sizes. If you need bigger stones, you can enquire and these can be cut depending upon the availability of rough stones.

Please enquire about your needs. If you have special requests we are happy to help you.


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Updated November 27, 2004