GIA Laboratory Bangkok (Thailand)

GIA Research (Thailand)

10th Floor U-Chu-Liang Building
968 Rama IV Road Silom Bangrak Bangkok
10500 Thailand

Tel: (66) 2 632 4090
Fax: (66) 2 632 4096
Email: giabkklab@gia.edu

Office Hours:
10.00 a.m. - 5.00 p.m. (Mon-Fri)

Welcome to GIA Laboratory Bangkok's "Lab Notes" page.

This page contains short gemological studies about different gemological topics of interest from pearls to colored stones.These "Lab Notes" are produced by gemologists working at the GIA Laboratory, Bangkok. We hope that these short studies will interest you as much as these stones interested us.
Comments and enquires about these "Lab Notes" are warmly welcomed.
Please contact: giabkklab@gia.edu stating the name of the project and name(s) of the author(s).

A large naturally colored natural blister pearl by N. Sturman
"(June 04, 2009): This report details the examination of a large naturally colored blister pearl which was submitted at GIA Laboratory Bangkok for examination in May 2009."

An Unusual Pearl by N. Sturman
"(March 31, 2009): An interesting pearl identification story: The first indication that something was "wrong" was immediatly apparent as soon as anyone held the pearl in their hands..."

Winza ruby? No sorry my name is Rhodonite! by V. Pardieu
"(March 23, 2009): A short identification story which reminds us that this is better to cross check any observation with another gemological instrument in order to validate that observation"

Pearls with unpleasant odors by N. Sturman
"(March 22, 2009): Two pearls submitted recently at the GIA Laboratory Bangkok revealed an interesting inner secret!"

Twelve Ray Star sapphire of Interest by G. DuToit
"(March 22, 2009): Star sapphires are submitted to the laboratory on a regular basis ... but this dark purple 12 rays star sapphire attracted our attention!"