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%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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