Go To Top

ICA News

John G. Bares John G. Bares, Inc USA

Claude Barguirdjian
Claude Barguirdjian
France

N.R. Barot Ruby Centre (Kenya) Ltd Kenya

Gerhard Becker Friedrich August Becker Germany

Rudolph Biehler Ernst Farber Germany

J.F. de Ceballos Romay Instituto Mexicano de Gemologia Mexico

Yoshiko Doi Association of Japan Gem Trust Japan

Rashmikant Durlabhji (deceased) MIS R.Y. Durlabhji India

Israel Z. Eliezri Colgem EL 97 Ltd Israel

Mohamed Saleem M. Fazli Saleems Ltd Sri Lanka

Manuel Freyermuth Instituto Mexicano de Gemologia Mexico

Prof. Dr. Edward J. Gubelin (deceased)   Switzerl

Gerard Grospiron Etablissements Grospiron France

Bill Jewell Opalart Pty Ltd Australia

Alan Jobbins Alan Jobbins UK

Hidetaka Kato Kashikey Co, Ltd Japan

Hiroshi Komatsu Japan Pearl Promotion Japan

Con Lenan The Brick Development Association UK

Chi Chan Leung Tai Yip Trading Company Hong Kong

Richard T. Liddicoat Jr (deceased) Gemological Institute of America USA

Reginald C. Miller Reginald C. Miller LLC USA

Eugene Naftule (deceased) Naftule Fils S.A. Switzerland

Roland Naftule Nafco Gems, Ltd USA

Yip Kun Poon Cogent Trading Co, Ltd Hong Kong

Stuart Robinson Barnett Robinson, Inc USA

Michael D. Roman (deceased) Jewelers of America USA

Maurice Shire Maurice Shire, Inc USA

Yasukazu Suwa Suwa & Son Inc Japan

Konrad Wild (deceased) Johann Philipp Wild Germany

Chi Wai Yau Yau’s Gems Limited Hong Kong

Ray Zajicek Equatorian Imports Inc USA

 

 

Incolor Magazine Subscription

All about colored gemstones. A Publication of the International Colored Gemstone Association (ICA)

Read more

Join ICA

Membership in the International Colored Gemstone Association affords industry professionals worldwide...

Read more

ICA Bookstore

The International Colored Gemstone Association (ICA) provides this online bookstore as a service to the industry and is not to be considered an endorsement. 

Read more