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Rough diamond credit Shutterstock
Gübelin Testing Nano-Tracking for Diamonds
Gübelin Gem Lab is studying how it can place microscopiclabels on diamonds to track them through the supply chain. The Swiss institute launched its Emerald Paternity Test in2017, applying invisible nanoparticles to rough stones to enable...
Technology Feb 13, 2019 Joshua Freedman
Gemfields
Nirav Modi Crisis Hits Gemfields
Proceeds slumped at Gemfields’ May auction ofhigher-quality rough emeralds as the Nirav Modi fraud case hurt Indian demand,the miner reported last week. Most of the company’s emerald clients are based in India,where the gemstone...
Gemstones May 27, 2018 Rapaport News
Gubelin nanoparticles
Gübelin Using Nanotech for Emerald Traceability
Gübelin Gem Lab has unveiled a radical solution for tracingthe origin of emeralds, using nanotechnology to mark stones with an invisibleimprint that is accessible at any stage of the supply chain.Branded the “emerald paternity test,” the technology...
Technology Mar 28, 2017 Rapaport News
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