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Laboratories
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Central Coast Gemological Laboratory - Services include cutting, appraisal, classes and gem sales.
Agtl - Do you want to be assured of the highest valuation standard for jewellery and gemstones?.
Ciemmeo srl. - Clemmeo is a mechanical company with twenty years of experience in the field of designing and building machinery for the goldsmith industry.
European Gemological Laboratory - European Gemological Laboratory's is and international inderpendent leader in diamond grading and training for all diamond business solutions.
Galvaogems - Created in 1994 by Mr. Davi GALVAO and subdivided in specific departments allowing versatility, flexibility and high quality standards.
Gem-A - Promoting education of gem materials, Membership, Laboratory services, and more.
Global Gemological Laboratory - Provides diamond grading reports and appraisals.
Harold Weinstein Ltd. - Gemological laboratory specializing in fine jewelry insurance, estate appraisals, and more.
Kashmir Sapphires - Provides a network of gemologists, private collectors, and international financiers for the buying and selling of kashmir and burmese sapphires.
Oro Studio Italy Srl - Orostudio Italy was founded in 1988, thanks to the perspicacity of Lino Zorzi.
The Gubelin Gem Lab - The Most Comprehensive Research Study of GE POL Diamonds.