Jewelry Guides and Information

Staff Opinion Letters

Gold Markings

Laurent Paichot
Federation of the Swiss Watch Industry

Silver Markings

Craig H. Neilson
Logo Communications, Inc.
Elliot A. Salter
Salter & Michaelson

Diamond Claims

V.K. Sethi
SB&T Gems

Platinum Claims

Request for Staff Opinion by Karat Platinum
Staff Response to Karat Platinum
Letter to Commenters

Gemstone Treatments

Arthur I. Winard
Roland Naftule
American Gem Trade Association, Inc.

Country of Origin Markings

Pamela Meloni
DaMa, Inc.
Andrew G. Berg
King & Spalding
Request letter
Tabs A, B, C, D, E, F

Last Modified: Friday, June 24, 2011