Contact Us

Gemmological Association of All Japan Co., Ltd.
GAAJ-ZENHOKYO Laboratory
8F Daiwa-Ueno Building

5-25-11 Ueno
Taito-ku

Tokyo 110-0005

Japan

 
Tel: +81-3-3835-2466,  FAX: +81-3-3839-0798
Email: laboratory@gaaj-zenhokyo.co.jp 

Gemmological Laboratory Japan-Israel (ZENHOKYO) Ltd.
ZENHOKYO ISRAEL

D-Mall, 2nd floor,

1 Jabotinsky St.

Ramat-Gan 52520

Israel

Tel: + 972-3-575-6036

Fax: +972-3-575-6037 

Email: zenhokyo@netvision.net.il