PDF
GB/T 18303-2008 Active
GB/T 18303-2008 Color grading of polished diamond by visual matching
Abstract
This standard specifies the basic conditions, operating procedures, and arbitration for the visual evaluation of the color (Cape series) of diamonds (after cutting and polishing). This standard applies to the visual evaluation of the color grade of diamonds that have been processed and polished. Diamonds that have been set can also be evaluated in accordance with this standard.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 18303-2008 |
| CCS | Special non-metallic minerals |
| ICS | Jewelry |
| Implement Date | 2008-11-01 |
Price
$ 42
Subtotal
$ 42
Tax
$ 0.00
Order Total (incl. tax)
$ 42