-
Eduard Josef Gübelin (1913 – 2005) was a
Swiss gemstone researcher.
Gübelin's studies on
gemstone inclusions laid the
groundwork for the
microscopic identification...
-
Gübelin, the
founder of
Gübelin Gem Lab in Lucerne, Switzerland, had the
opportunity to
inspect the
diamond before the
auction took place.
Gübelin's experience...
- and the
identification of
natural pearls Gübelin Gem Lab, the
traditional Swiss lab
founded by
Eduard Gübelin Institute for Gems and Gold
Research of VINAGEMS...
- "well-proportioned cut,
highly attractive colour and fine purity". The
Gubelin Gem Lab in
Lucerne stated that "such a
combination of
characteristics is...
-
origins of
color in minerals" (PDF).
American Mineralogist. 63: 219–229. E.
Gübelin, K. Schmetzer.
Gemstones with
Alexandrite Effect, Gems & Gemology, 1982...
- detect,
requiring advanced chemical analysis by
gemological labs (e.g.,
Gübelin, SSEF, GIA,
American Gemological Laboratories (AGL),
Lotus Gemology. According...
- Burma. It was
first identified in 1963 by the late
Swiss gemologist Edward Gubelin and was
named after the
village close to
where it was
first found in the...
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American Gemological Laboratories — AGL
European Gemological Laboratory — EGL
Gübelin Gem Lab — GGL
Laboratoire français de
gemmologie — LFG
Professional gemstone...
- govt in Mardan". The Nation. 8 June 2015.
Retrieved 29
November 2017.
Gubelin, Edward; Graziani, Giorgio; Kazmi, A.H. "PINK
TOPAZ FROM ****STAN" (PDF)...
-
Semiprecious Stones of the World. Book Sales. p. 169. ISBN 978-0-7858-3498-4.
Gübelin, Edward; Graziani, Giorgio; Kazmi, A. H. (1986-10-01). "Pink
Topaz from...
