Synthetic-Like Natural Industrial Diamonds from Japan
Low-clarity natural diamonds resembling synthetics, used in grinding and lapping compounds. Classified in HTS 7102.21.40.00 as other industrial unworked/sawn diamonds per chapter notes excluding alloys.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include gemological reports certifying natural origin vs. synthetic
• Declare fluorescence and inclusion patterns typical of industrial grade
• Mark packages 'Industrial Use Only - Not for Jewelry' clearly