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           11 November, 2024
 
    
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GemResearch Swisslab

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Determination of the authenticity and country of origin of a rubies and sapphires. Offers gemstone reports and inscriptions.
URL: http://www.gemresearch.ch
Title: GemResearch Swisslab (GRS) Specializing in Origin Determination of Fine Rubies and Sapphires
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Description: GemResearch Swisslab (GRS) has invented its own high technology portable gemmological laboratory, computerised and with state-of-the-art spectrometers. GRS Heat Treatment thermal treatment gemmological heat enhancement process clarity color ruby sapphire Gemresearch Swisslab cavities.
Specialized in: Grs - Sem - Geology - Mineralogy - Switzerland

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SSEF Swiss Gemmological Institute (Popularity: ): An independent, international, non-profit organisation dedicated to the identification, treatment, and origin. Services, education, and contact information. Located in Switzerland.
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