Three veteran gemologists today announced the opening of Swiss International Gemlab (SIG), a cutting-edge facility leveraging proprietary artificial intelligence (AI) to enhance grading accuracy and consistency for colored gemstones.

Founded by Willy Bieri, Lawrence Hahn, and Matthias Alessandri—senior experts who have collaborated for over a decade—SIG will operate from state-of-the-art locations in Lucerne, Switzerland, and Hong Kong. The lab promises faster results, unmatched transparency, and scientific rigor, insulated from external influences.

SIG delivers a full spectrum of services, including gemstone identification, origin determination, treatment analysis, and advanced color grading. At its core is SIG-AI Assistance, a proprietary system that cross-references analytical data against structured databases to detect anomalies, ensure report consistency, and slash interpretation time.

With a standard turnaround of five business days—plus expedited options for urgent needs—and real-time status tracking, SIG sets a new benchmark for efficiency and reliability in gem certification. The lab will make its global debut at this year’s GemGenève in May, offering on-site services to industry professionals.