The conference includes short presentations by industry experts followed by open discussion. The subjects include Andesine: controversies on origins treatments and disclosures , Update on emerald treatments detection and laboratory reports, Nomenclature for lead glass filled corundum, and Ethical mining, trade and laboratory issues. The discussions will focus on looking for acceptable solutions related to all topics on the agenda and will be open for follow up conducted by working groups. %% For more than a decade ICA has organized GILC in various parts of the world, bringing top industry leaders together to present research findings and discuss gemmological and (certification or laboratory) issues relevant to the trade and the consumers. Chairman of GILC, Sushil Goyal, announced that a report of the discussion and outcomes of GILC in Tucson will be shared with the international gem and jewellery industry. Progress and results of the working groups will be reported in the same manner.