| Comment Number: | 534660-00003 |
| Received: | 6/26/2008 12:46:46 PM |
| Organization: | A. DeMello Gemologica Laboratory |
| Commenter: | Arthur DeMello |
| State: | MA |
| Agency: | Federal Trade Commission |
| Rule: | Guides for the Jewelry, Precious Metals, and Pewter Industries |
| No Attachments |
Comments:
I have worked in the Diamond and Jewelry Appraisal profession for over 23 years. Suggestion: To eliminate confusion (1) One way would be to continue to stamp platinum with a number of fineness as is done with 950 Plat (95%) indicates 5% iridium and 900 Plat (90 %) indicates 10% iridium. Thus would be ex. giv 580 Plat (58%) indicating 42% Iridium (Not to be confused with:" 585 gold) 14K". It may be important to maintain a standard base metal for platinum. The words Clad, Overlay and Plated are general, do not indicate % percent content and therefore are confusing. Arthur DeMello GG (GIA), J-Bar, USPAP. A. DeMello Gemological Laboratory http://www.nationalgemologicallaboratory.com