Research Archive
Communicating Research Findings
In keeping with GIA’s service mission, GIA researchers communicate their findings to the industry and public through articles that appear in Gems & Gemology and other respected publications. GIA scientists and experts also deliver informative presentations at industry and professional conferences around the world.
- GIA Research Articles
- GIA Research Presentations
Diamonds
Eaton-Magaña S., Post J.E., Heaney P.J., Walters R.A., Breeding C.M., Butler J.E. (2007) Fluorescence spectra of colored diamonds using a rapid, mobile spectrometer. Gems & Gemology, Vol. 43, No. 4, pp. 332–351.
Moses T., Shigley J., McClure S. (2007) A coat of many colors. Rapaport Diamond Report, Vol. 30, No. 5, February 2, pp. 1, 36–37.
Shen A.H., Wang W., Hall M.S., Novak S., McClure S.F., Shigley J.E., Moses T.M. (2007) Serenity coated colored diamonds: Detection and durability. Gems & Gemology, Vol. 43, No. 1, pp. 16–34.
Wang W., Hall M., Breeding C.M. (2007) Rapid Communications: Natural type Ia diamond with green-yellow color due to Ni-related defects. Gems & Gemology, Vol. 43, No. 3, pp. 240–243.
Wang W., Hall M.S., Moe K.S., Tower J., Moses T.M. (2007) Latest-generation CVD-grown synthetic diamonds from Apollo Diamond Inc. Gems & Gemology, Vol. 43, No. 4, pp. 294–312.
Hainschwang T., Notari F., Fritsch E., Massi L., Rondeau B., Breeding C.M., Vollstaedt H. (2008) HPHT treatment of CO2 containing and CO2-related brown diamonds. Diamond and Related Materials, Vol. 17, No. 3, pp. 340–351.
Overton T.W., Shigley J.E. (2008) A history of diamond treatments. Gems & Gemology, Vol. 44, No. 1, pp. 32–55.
Titkov S.V., Shigley J.E., Breeding C.M., Mineeva R.M., Zudin N.G., Sergeev A.M. (2008) Natural-color purple diamonds from Siberia. Gems & Gemology, Vol. 44, No. 1, pp. 56–64.
Colored Stones and Organic Gem Materials
Fritz E.A., Laurs B.M., Downs R.T., Costin G. (2007) Rapid Communications: Yellowish green diopside and tremolite from Merelani, Tanzania. Gems & Gemology, Vol. 43, No. 2, pp. 146–148.
Hainschwang T., Notari F., Anckar B. (2007) Trapiche tourmaline from Zambia. Gems & Gemology, Vol. 43, No. 1, pp. 36–46.
Laurs B.M., Simmons W.B., Rossman G.R., Fritz E.A., Koivula J.I., Anckar B., Falser A.U. (2007) Yellow Mn-rich tourmaline from the Canary mining area, Zambia. Gems & Gemology, Vol. 43, No. 4, pp. 314–331.
Moe K.S., Moses T.M., Johnson P. (2007) Rapid Communications: Polymer-impregnated turquoise. Gems & Gemology, Vol. 43, No. 2, pp. 149–151.
Smith C.P., McClure S.F., Eaton-Magaña S., Kondo D.M. (2007) Pink-to-red coral: A guide to determining origin of color. Gems & Gemology, Vol. 43, No. 1, pp. 4–15.
Chadwick K.M., Breeding C.M. (2008) Color variations and properties of johachidolite from Myanmar. Gems & Gemology, Vol. 44, No. 3, pp. 246–251.
Du Toit G., Shen A.H., Breeding C.M. (2008) The color durability of “Chocolate Pearls” by Ballerina Pearl Co. Gems & Gemology, Vol. 44, No. 3, pp. 234–241.
Laurs B.M., Zwaan J.C., Breeding C.M., Simmons W.B., Beaton D., Rijsdijk K.F., Befi R., Falster A.U. (2008) Copper-bearing (Paraiba-type) tourmalines from Mozambique. Gems & Gemology, Vol. 44, No. 1, pp. 4–30.
McClure S.F., Shen A.H. (2008) Coated tanzanite. Gems & Gemology, Vol. 44, No. 2, pp. 142–147.
Speaker | Venue | Topic |
Mike Breeding | Winter Conference on Plasma Spectrochemistry (Temecula, California) | Quantitative Major Element Chemical Analysis Using LA-ICP-MS: Gemstone Applications |
Andy Shen | Winter Conference in Plasma Spectrochemistry (Temecula, California) | Applications of LA-ICPMS in Gemology |
James Shigley | Accredited Gemologists Association Conference (Tucson, Arizona) | Coated Gemstones |
James Shigley | American Gem Trade Association Show (Tucson, Arizona) | GIA Research Update |
John King | Palm Beach Fair (West Palm Beach, Florida) | Colored Diamonds |
Mike Breeding, Andy Shen | GIA Thailand | Inside GIA Research: Current Topics on Diamonds and Colored Stones |
John King | The Plumb Club Forum (New York) | Update on Diamond Treatments and Synthetics |
Shane McClure | Orange County Alumni Association (Laguna Niguel, California) | Developments at the GIA Laboratory |
Matt Hall, Donna Beaton | Washington D.C. GIA Alumni Chapter | Fancy Colored Diamonds; Updates on Colored Stone Treatments |
Donna Beaton | New England GIA Alumni Chapter | Current Enhancement Issues in Colored Stones: Update on Be in Corundum, Lead-Glass Filling of Rubies |
Al Gilbertson, Tom Moses | American Gem Society Conclave (Seattle) | Joint Cut Talk with American Gem Society |
James Shigley | American Gem Society Conclave (Seattle) | Update on CVD Synthetic Diamonds and Coated Gemstones |
John Koivula | American Gem Society Conclave (Seattle) | Certified Gemologist's Clinic: Synthetic Gem Materials |
John Koivula | John Sinkankas Symposium (Carlsbad, California) | The MicroWorld of Garnets |
Donna Beaton | Manhattan GIA Alumni Chapter | Highlights from the Lab: Update on Be in Corundum, Lead-Glass Filling of Rubies |
Shane McClure | Ohio GIA Alumni Chapter | Natural and Heat-Treated Ruby and Sapphire; Diffusion Treatment of Corundum; Clarity Enhancement; Lead-Glass Filler in Ruby; Laser Drilling of Diamond |
John King | GIA Museum Lecture Series (Carlsbad, California) | The Allure of Colored Diamonds |
Al Gilbertson | Lone Star GIA Alumni Chapter (San Antonio) | GIA Cut Grade and Cut History |
Shane McClure | JCK Show (Las Vegas) | Laboratory Services |
John Koivula | Hong Kong Gem and Jewelry Show | The MicroWorld of Jade |
John Koivula | Taipei GIA Alumni Chapter | The MicroWorld of Jade |
John Koivula | Bangkok GIA Alumni Chapter | The MicroWorld of Jade |
Donna Beaton | Atlanta GIA Alumni Chapter | Hot Topics In Colored Stones: Update on Be in Corundum, Lead-Glass Filling of Rubies, Tanzanite Coating |
John Koivula | National Association of Jewelry Appraisers Conference (Chicago) | Treated and Synthetic Gem Materials |
Rich Phillips, Mike Breeding | Denver X-ray Conference | Analysis of Sapphire and Ruby by EDXRF |
Al Gilbertson | Arkansas State Jewelers' Convention | GIA Cut Grade and Cut History |
Donna Beaton | Arkansas JA Conference | Irradiation of Gemstones: The Case of Blue Topaz; Updates on Colored Stone Treatments: Be-Diffusion of Corundum and Lead-Glass Filling; Tanzanite Coating |
Al Gilbertson | GIA New York | Brightness, Fire and Pattern and What Causes Them |
Al Gilbertson | GIA New York | Cut History |
James Shigley | Vilnius, Lithuania | Overview of Gemology and Review of Diamond Identification |
Al Gilbertson, Tom Moses | Cartier Managers Summit (New York) | GIA Cut Grade System |
James Shigley | Helsinki, Finland | Review of Diamond Identification and Diamond Cut Grading System |
John Koivula | Los Angeles Microscopical Society | Inclusions as Clues to Mineral Formation |
Shane McClure | Texas GIA Alumni Chapter (Dallas) | Identification of Diamond Treatments and Synthetic Diamonds |
Riccardo Befi | Tennessee GIA Alumni Chapter | Hot Topics In Colored Stones: Update on Be in Corundum, Lead-Glass Filling of Rubies |
James Shigley | Rapaport Diamond Conference (New York) | Diamond Identification Technology and Challenges |
John Koivula | Master Valuer Program (Chicago) | The MicroWorld of Jade |
John Koivula | World of Gems Conference (Chicago) | Keynote Speech: The MicroWorld of Pearls, Rubies, and Sapphires |
John Koivula | World of Gems Conference (Chicago) | Keynote Speech: The MicroWorld of Emeralds and Diamonds |
Wuyi Wang | Connecticut Jewelers Association | Diamonds and Diamond Treatment |
Al Gilbertson | Gemmological Association of Great Britain Centenary Conference and 2nd Annual European Gemmological Symposium (London) | Diamond Cutting History |
John Koivula | Gemmological Association of Great Britain Centenary Conference and 2nd Annual European Gemmological Symposium (London) | Inclusions in Gemology: A History Interwoven |
Al Gilbertson | London GIA Alumni Chapter | Diamond Cutting History |
Donna Beaton | Ohio GIA Alumni Chapter | Irradiation of Gemstones: The Case of Blue Topaz; Tourmaline Update |
John Koivula | Carlsbad GIA Alumni Chapter | Building a Photoatlas Library |
John Koivula | Canadian Gemmological Association Conference (Toronto) | New Observations of Inclusions |
Helpful Links
New! GIA 4Cs Apps
New! Global Dispatch
Lead Glass-Filled Rubies