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#GRS documentary 2015: A journey to Mogok

#GRS documentary 2015: Interesting discoveries at the Mandalay gemstone market

Latest GRS Alerts

GRS Alert: Unusual phosphorescent pebbles identified as synthetic aggregates 24/04/2016

GRS Alert: A new type of synthetic spinel appears at the Bangkok show 14/09/2015

GRS Alert: New spinel treatment discovered involving heat- and cobalt-diffusion 22/05/2015

Recent Posts

Retake of GRS presentation from 2018 GILC meeting in Tucson, AZ 26/02/2018

GILC Meeting in Tucson 2018 23/01/2018

Update of Color-Grading for GRS-type “Pigeon’s Blood” Borderlines 10/12/2017

GRS Newsletter

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GRS Gemresearch Swisslab

2 months ago

Visit us at the Hong Kong Jewellery & Gem Fair - Booth # 3M084 ... See MoreSee Less

Booth # 3M084 at Hong Kong Jewellery & Gem Fair

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