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 Welcome to GIA Laboratory Bangkok's "Ongoing Research" page.
This page contains reports (as pdf format) indicating the status of gemological research projects that are still ongoing within GIA Laboratory Bangkok. The purpose of this page is to provide to people searching on the Internet for some information about gemology with the most up to date and accurate data available about these different gemological challenges.
Comments on the reports and their direction are warmly welcomed as are offers of collaboration. Please contact: info@giathai.net stating the name of the project and name(s) of the author(s).
GIA Laboratory Bangkok Ongoing research pdf reports gallery (arranged by date): |
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Special Issue: Rubies from Mozambique
"(Updated May 11th 2010) A special issue with several pdfs about the gemology of Mozambique rubies and for the first time a description of the ruby mining areas in Northern Mozambique and a study of flux treated Mozambique rubies..." |
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Lead glass filled star rubies reportedly from Madagascar by V. Pardieu, P. Lomthong and N. Sturman:
"(February 01st, 2010) A preliminary examination of a new product which will soon be more available in the market: Lead glass filled star rubies... " |
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The microradiographic structures of non bead cultured pearls by N. Sturman:
"(November 21, 2009) The origin determination ('natural' versus 'cultured' formation) of pearls submitted to any laboratory is based on a number of important factors..." |
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The Potential for diffusing copper into Tourmaline. Preparation for initial experimentation by S. Saeseaw, K. Scarratt and J.L. Emmett:
"(Updated July 28th 2009, first released on March 24, 2009) There have been some discussion within the gemological community concerning the possibility that some tourmaline on the market may have been diffused with Cu... " |
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Beryllium Treated Blue Sapphires: Continuing market observations and update including the emergence of larger size stones by G. DuToit, J.Thanachakapad and K.Scarratt:
"(June 25th, 2009) This study, which constitues a small portion of an ongoing project, is an update on the presence in the market of beryllium treated blue sapphires, the type of material and their identification characteristics. " |
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Corundum C Axis Device for Sample Preparation by T. Thomas (GIA Laboratory)
"(Jun. 04, 2009) This note describe a tool to facilitate the proper orientation of research corundum specimen to be polished. This will enable GIA researchers to collect accurate polarized absorption spectra"
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Distinguishing Heated from Unheated Natural Spinels and from Synthetic Spinels by S. Saeseaw, W. Wang, K. Scarratt (GIA Laboratories, Bangkok and New York) and J.L. Emmett and T.R. Douthit (Crystal Chemistry, Brush Prairie, Washington)
"(Updated May 25, 2009) A short updated review of an on-going research project. " |
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Sapphires reportedly from the Batakundi / Basil area by V. Pardieu, Dr. K. Thirangoon, P. Lomthong, S. Saeseaw, J. Thanachakapad and G. Du Toit :
"(April 30, 2009) A preliminary examination and comparisonwith rubies and pink sapphires from other deposits in Central Asia."
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Effects of heating and copper diffusion on feldspar, On-going research (updated)by Dr. K. Thirangoon
"(April 29, 2009) Heat treatment was conducted on light yellow feldspar... "
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A discussion on Ruby-Glass Composites & Their Potential Impact on the Nomenclature in use for Fracture-Filled or Clarity Enhanced stones in General by K. Scarratt:
"(April 01, 2009), this study about Ruby-Glass Composites was first released as limited LMHC (Laboratory Manual Harmonization Committee) distribution in Feb. 2008)" |
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Jeremejevite. A description of a 400 crystal collection from Namibia and a preliminary study of five color types by J. Thanachakaphad:
"(March 30, 2009) Jeremejevite is considered as a gemological rarity and is therefore hardly ever encountered by the public in the market... " |
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Ruby and pink sapphire from Aappaluttoq, Greenland by Dr. K. Thirangoon:
"(March 23, 2009) A status of an ongoing research : 26 rubies and pink sapphires from Aappaluttoq, Greenland were analyzed... " |
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About gemological research at GIA:
For decades, GIA has been on the cutting edge of gemological research, analyzing data on gems and their characteristics. This effort becomes more challenging each year, as new gem sources emerge and new treatment processes and synthetic materials come onto the market. And if artificially enhanced gems and synthetics were left undetected, every gem and jewelry purchase would be a risk. GIA is dedicated to providing consumers the knowledge they need, and that’s why research is at the very core of GIA’s nonprofit mission.
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