Synthetic-Like Natural Industrial Diamonds from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, 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