ARAI GALLERY
7-10-8 Ginza, Chuo-ku, Tokyo
Phone: 03-3574-6771
AWAZU GALLERY
3-7-12 Nihombashi, Chuo-ku, Tokyo
Phone: 03-3271-4041
BIJUTSU CLUB ART CONNOISSEUR DIVISION
Kyodo Ueno Bldg., 2-18-7 Higashi-ueno, Taito-ku, Tokyo
Phone: 03-3835-2093
CENTRAL GEM LABORATORY CO., LTD.
Idemitsu Nagahori Bldg. 4F, 3-4-26 Minami-semba, Chuo-ku, Osaka City, Osaka
Phone: 06-6245-5187
FUJIKAWA GALLERY
8-5-4 Ginza, Chuo-ku, Tokyo
Phone: 03-3574-6820
GEMOLOGICAL INSTITUTE OF ALL JAPAN
3-19-6 Ueno, Taito-ku, Tokyo
Phone: 03-3836-2828
JAPAN GEMOLOGICAL SERVICE OSAKA
Line Build Shinsaibashi 301, 3-2-1 Minami-semba, Chuo-ku, Osaka City, Osaka
Phone: 06-6252-5420
JAPAN GENOMICS LTD. DNA TESTING
4-20-2-1217 Ebisu, Shibuya-ku, Tokyo
Phone: 03-5798-7850
Fax: 03-5798-7851
Website: http://www.japangenomics.co.jp
JAPAN GERMANY GEMMOLOGICAL LABORATORY
5-16-17 Ueno, Taito-ku, Tokyo
Phone: 03-3831-2690
Email: jggl@mm.neweb.ne.jp
KOKUHOREN
1-8-27-2F Higashi-shinsaibashi, Chuo-ku, Osaka City, Osaka
Phone: 06-6252-8818
KOME SHOKUMI KANTEISHI KYOKAI
Dai-5 Shin-osaka Bldg. 607, 3-12-15 Nishi-nakajima, Yodogawa-ku, Osaka City, Osaka
Phone: 06-6100-1151
KOTANI TOKUSHU HYAKKA SHOTEN
1-2-10 Akagawa, Asahi-ku, Osaka City, Osaka
Phone: 06-6922-4061
NIHON KOGAKU KANTEI CENTER
Keihan Makisu Umeda 310, 4-5-5 Nishi-temma, Kita-ku, Osaka City, Osaka
Phone: 06-6364-6038
NISSEI GALLERY
3-7-13 Ginza, Chuo-ku, Tokyo
Phone: 03-3564-5973
NOSE KOBIJUTSU ICHIBA
325 Hira-dori, Nose-cho, Toyono Gun, Osaka
Phone: 072-731-2400
OKUDA BUNSHO KANTEI KENKYUSHO
Keihan Makisu Umeda 702, 4-5-5 Nishi-temma, Kita-ku, Osaka City, Osaka
Phone: 06-6362-8774
Fax: 06-6360-0315
PACIFIC GEM GRADING LABORATORY
2-10-22 Minami-semba, Chuo-ku, Osaka City, Osaka
Phone: 06-6253-7781
Fax: 06-6253-7782
PEARL INSTITUTE CO., LTD.
1-13-10 Higashi-ueno, Taito-ku, Tokyo
Phone: 03-3836-0352
Fax: 03-3836-0353
SHIMIZU HOKAGAKU CONSULTANT OFFICE
Keihan Makisu Umeda 305, 4-5-5 Nishi-temma, Kita-ku, Osaka City, Osaka
Phone: 06-6313-1318
TOMITA KANTEI JIMUSHO CO., LTD.
23-5 Korien-yamanote-cho, Hirakata City, Osaka
Phone: 072-835-8111
Fax: 072-835-8222
Email: tomita1@oak.ocn.ne.jp
URBAN ART TEMMAYA
4 Nakano-cho, Miyakojima-ku, Osaka City, Osaka
Phone: 06-6353-9299
YANAGI
13-6 Yasaka-cho, Neyagawa City, Osaka
Phone: 072-821-1237
ZENKOKU HOSEKIGAKU KYOKAI OSAKA BR.
4-3-11 Minami-semba, Chuo-ku, Osaka City, Osaka
Phone: 06-6252-5428