A Mark - When science is Aesthetic

Proudly presented by Asian Gemmological Institute and Laboratory Limited, the world-first A Mark is a fine silk-thread-like marking by nanotechnology on the surface of coloured gemstones, with a unique serial number corresponded to their testing certification.

This epoch-breaking A Mark is in fact an aesthetic architecture of top-tier technology, including series of advanced testing, artificial intelligence, big data and blockchain technology.