In March, Gübelin Gem Lab announced the launch of a new traceability technology for Emeralds. A path breaking technology, Emerald Paternity Test uses customized DNA based nanoparticles that enables the traceability of emeralds to the exact place of mining. We find out more about this state of the art technology from Raphael Gübelin, President of the House of Gübelin. By Vijetha Rangabashyam