For 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 you to; AGTA GEMFAIR TUCSON Tucson Convention Center Galleria, Booth 9 / West Office Mobile: +1 929 382 0771 Date: February 1st – February 6th […]