Gemstone
Gathering
The
10th Gemstone Gathering took place on February
25, 2008
about
"Inside
GIA Research : Current topics on diamonds and colored stones"

By
Mr. Andy Hsitien Shen, Ph.D. and Mr. Christopher M. Breeding
(Senior
research scientists at GIA Laboratory in New York, California)
On the 25th
of February 2008 GIA Laboratory Bangkok and GIA Thailand Education departments
hosted its 10th GIA Gemstone Gathering at the GIA Thailand Campus. The
presentation for the evening was given by two guest speakers from GIA’s
Laboratory in New York, and was the first time that two speakers were
invited for a Gemstone Gathering.
The
two speakers were Dr. Andy Hsitien Shen and Dr. Christopher M. Breeding
both Senior Researchers with the GIA Laboratory.

The
topic for the evening’s presentation was entitled “Inside
GIA Research: Current topics on diamonds and colored stones”.


Dr. Shen’s presentation gave the
63 attendees an insight in to some of the most important and current
advanced instruments that are being used for corundum treatment identification
and research projects. Shen covered many applications of the various
analytical tools found at the GIA Research Laboratory in Bangkok, Dr.
Shen’s main focus was on Laser-Ablation Inductively Coupled Plasma
Mass Spectrometry (LA-ICPMS) and its uses in current colored stone treatment
detection issues.
Dr.
Mike Breeding changed the direction of focus for the evening presentation
and took attends into the challenging world of the detection of diamond
treatments and synthetics. Dr. Breeding explained the importance of
certain invaluable pieces of advanced testing equipment when separating
natural, treated and synthetic diamonds with special emphasis on geochemical
and spectroscopic analysis to determine a diamonds origin of color.
A refresher on the identification of these types of diamonds using standard
identification techniques was also given at the end of his presentation
for the keen gemologists in the audience.

Many
GIA Thailand Alumni and members of the trade commented after Andy and
Mike’s presentation at how clear, concise and easily understood
they made their presentations which can sometimes be a difficult subject
to address considering the technical nature of many aspects of their
presentation.
GIA
Thailand’s educational staff was extremely happy to see the many
GIA Thailand Graduates who were visiting Bangkok for the 41st Bangkok
Gems and Jewelry Fair attend the Gathering.

GIA
Thailand Education & GIA Laboratory Bangkok look forward to seeing
you next month in March for the next GIA Gemstone Gathering. Please
keep an eye on www.giathailand.com
& www.giathai.net
for more details, dates and topics for up coming Gatherings and GIA
events.
by
GIA Thailand Campus and
GIA Research Thailand