AGT Gem Laboratory
Okachimachi CY Building 2F, 5-15-14 Ueno, Taito-ku, Tokyo, 110-0005
T: 81.3.3834.6586 F: 81.3.3834.6589
W: www.agt.jp E: info@agt.jp
OWNERS: GIA Japan and Yoshiko Doi
DIRECTOR: Hajime Uesugi
SPECIALIZATION: Diamond grading and all types of gem identification.
SPECIAL EQUIPMENT: Complete gem testing equipment, FTIR, UV-Vis recording spectrophotometer with cooling system, XRF, soft X-ray transmission equipment, LIBS, infrared microscope, differential interference contrast microscope, laser Raman microspectrometer (Ranishow), DiamondSure, DiamondView, DiamondPlus, DiaVision.
SERVICES OFFERED: Diamond grading report (including sorting memo), gem identification report, diamond type analysis report, diamond chameleon report, DiamondView report, patented diamond Hanashirube report, paraiba tourmaline analysis report, inclusion report.
CERTIFICATES/REPORTS: Grading report contains cutting style, measurements, weight, color, fluorescence, clarity, plotting, proportion data, finish, cut and color origin.
EDUCATIONAL PROGRAMS: Gemological seminars.
International Gemological Institute (IGI) Tokyo UT Bldg., 2-21-13 Higashi Ueno Taito-ku, Tokyo 110-0005 T: 81.3.5807.2958 F: 81.3.5807.2959 W: www.igiworldwide.com E: japan@igiworldwide.com CONTACT: Hideji Shojima, managing director See Belgium, IGI Antwerp for details.
Japan Technical Gem Co. Ltd. Tokyo 2F, Hanabusa BLDG 2-3 5-chome Sotokanda Chiyoda-Ku, Tokyo 101-0021 T: 03.3834.5491 F: 03.3834.5492 W: www.gci-labs.com E: tgl-niro@osb.att.ne.jp CONTACT: Tatsushi Jogan Nagoya 4F Meijiya, BLDG 2-9 3-chome Saka Naka – Ku Nagoya 460-0008 T: 052.264.3027 F: 052.264.3028 W: www.gci-labs.com E: tgl-niro@osb.att.ne.jp CONTACT: Tatsushi Jogan OWNER: Kunihiko Jogan G.G. (GIA, U.S.) Osaka 2F Fukuda BLDG 11-13 Chome Minamsemba Chuo – Ku Osaka 542-0081 T: 06.6241.1585 F: 06.6241.1584 W: www.gci-labs.com E: tgl-niro@osb.att.ne.jp CONTACT: Tatsushi Jogan OWNER: Kunihiko Jogan G.G., (GIA, U.S.)
International Gemological Institute (IGI) Tokyo UT Bldg., 2-21-13 Higashi Ueno Taito-ku, Tokyo 110-0005 T: 81.3.5807.2958 F: 81.3.5807.2959 W: www.igiworldwide.com E: japan@igiworldwide.com CONTACT: Hideji Shojima, managing director See Belgium, IGI Antwerp for details.
Japan Technical Gem Co. Ltd. Tokyo 2F, Hanabusa BLDG 2-3 5-chome Sotokanda Chiyoda-Ku, Tokyo 101-0021 T: 03.3834.5491 F: 03.3834.5492 W: www.gci-labs.com E: tgl-niro@osb.att.ne.jp CONTACT: Tatsushi Jogan Nagoya 4F Meijiya, BLDG 2-9 3-chome Saka Naka – Ku Nagoya 460-0008 T: 052.264.3027 F: 052.264.3028 W: www.gci-labs.com E: tgl-niro@osb.att.ne.jp CONTACT: Tatsushi Jogan OWNER: Kunihiko Jogan G.G. (GIA, U.S.) Osaka 2F Fukuda BLDG 11-13 Chome Minamsemba Chuo – Ku Osaka 542-0081 T: 06.6241.1585 F: 06.6241.1584 W: www.gci-labs.com E: tgl-niro@osb.att.ne.jp CONTACT: Tatsushi Jogan OWNER: Kunihiko Jogan G.G., (GIA, U.S.)
