-
Asian Institute of
Gemological Sciences – AIGS
Canadian Gemmological ****ociation – CGA
Canadian Institute of
Gemmology – CIG
Gemological Science International...
-
International Gemological Institute (IGI) is a
gemological organization which certifies diamond,
coloured stone and jewellery. It was
established in 1975...
- The
Gemological Institute of
America (GIA) is a
nonprofit institute based in Carlsbad, California. It is
dedicated to
research and
education in the field...
-
laboratory Asian Institute of
Gemological Sciences (AIGS), the
oldest gemological institute in
South East Asia,
involved in
gemological education and gem testing...
- detect,
requiring advanced chemical analysis by
gemological labs (e.g., Gübelin, SSEF, GIA,
American Gemological Laboratories (AGL), and
Lotus Gemology). According...
- Gems and
Gemology (5th ed.).
Gemological Institute of America. pp. 62–63.
Wording in "grading report" (PDF).
Gemological Institute of America. July 2012...
-
Handbook of Gem
Identification (12th ed.).
Santa Monica, California:
Gemological Institute of America. pp. 158–160. ISBN 0-87311-012-9. Kraus, Edward...
- diamonds, are
greatly debated as to the
source of
their color, but the
gemological community most
commonly attributes both
colors to
gliding atoms in the...
-
coloration depending upon the type and
concentration of
nitrogen present. The
Gemological Institute of
America (GIA)
classifies low
saturation yellow and brown...
- S2CID 235729616.
Thermochromic Cr-rich
Pyrope Garnets (Gia),
Gemological. Gem
Reference Guide. City:
Gemological Institute of
America (GIA), 1988. ISBN 0-87311-019-6...
