February 1st 2026 Gemstone Testing at the AGTA GemFair in Tucson
Tucson Convention Center Galleria, Booth 9 / West Office 260 South Church, TucsonFor the duration of the fair, the Gübelin Gem Lab (GGL) will offer express on-site testing service for all major gemstones with no express charge. We are delighted to invite […]
