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01/01/1995

Rubin aus Mong Hsu, Myanmar (Burma) ein neues Vorkommen von kommerzieller Bedeutung Teil 1

Authors: Adolf Peretti, Karl Schmetzer, Heinz-Jürgen Bernhardt, Fred Mouawad Published in: Trade Journal Download Publication

Ruby
01/01/1994

Fluorite inclusions in Mong Hsu ruby

Authors: Adolf Peretti, F. Mouawad Published in: JewelSiam Download Publication

Ruby
01/05/1993

An in-depth look at Russia’s hydrothermal synthetic rubies

Authors: Adolf Peretti, Christopher P. Smith Published in: JewelSiam Download Publication

Ruby, Synthetics
01/01/1993

Rubies du Vietnam: Etude comparative avec les rubies de Birmanie e d’ autres provenence

Authors: Adolf Peretti, M.-L. Dele -Dubois, J. Fournier Published in: Revue De Gemmologie Download Publication

Ruby
01/01/1993

Foreign substances in Mong Hsu rubies

Authors: Adolf Peretti Published in: JewelSiam Download Publication

Ruby
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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

GRS Gemresearch Swisslab

1 month ago

GRS Gemresearch Swisslab

Visit us at Baselworld 2018. Hall 3.0 / Stand E05. Click the link for more information regarding our services. We are looking forward to seeing you!

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GRS at Baselworld 2018 - Hall 3.0 Stand E05

To facilitate the submission of your stones and to avoid waiting times, please fill in our pre-order form in advance and list each individual stones' total USD insurance value and carat-weight. Pre-or...

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