Japan

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.)