2 thoughts on “Diamond State Inspection Certificate, what does NGTC, NGSTC, and NGDTC represent? Is the diamond ring of the NGSTC certificate worth buying?”
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In fact, the certificate is just an attachment when buying a diamond. If there is no professional institution's identification certificate and the diamond ring you choose is 1CT, as long as you like this ring, you can't see the color of the stone with the naked eye, the color of the stone is yellow. The clarity looks okay (the naked eye is not visible), then it is okay ... After all, GIA, IGI, EGL and other foreign appraisal agencies will be relatively rigorous. In
Do not do that kind of finished diamond ring certificate!