b"Field Gemology: GIA eld gemologists have completed over 100 eld expeditions to gem deposits across six continents. This reliable reference data makes up the foundation of GIA's geographic origin report services.Reference Samples: MoreOur renowned eldthan 28,000 reference samplesgemology and have been collected by GIA,research scientistsrepresenting a wide variety ofbuild a strong gem materials and depositsfoundation, with to help determine coloredextensive global stone origin. expeditions and an unrivaled collection of gem specimens.Our expert gemologistsprovide critical insights, precisely identifying colored stone treatments and origins.Research Scientists: More than 20 research scientists support GIA gemological staff toOur respected reportsunderstand new treatments, describe andhelp your customers feel document the geology of gem deposits, andsecure with accurate develop new instruments used by our laboratories. information and condent in their purchase. Get Your ReportGIA.edu/ColoredStones 2002 - 2025 Gemological Institute of America, Inc. (GIA). All trademarks are registered trademarks owned by GIA. GIA is a nonprot 501(c)(3) organization.All rights reserved."