Industrial Diamond Powder from Japan
Fine powder made from natural or synthetic diamonds, where 90% or more by weight passes through a 0.5 mm sieve, used primarily for grinding and polishing tools. Classified under HTS 7105.10.00 as diamond dust and powder per subheading note. It meets the powder form definition for precious stones in this chapter.
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
• Verify 90%+ passes 0.5mm sieve via lab test; non-compliant shifts to 7105.90
• Provide certificates of synthetic/natural origin and grain size distribution
• Avoid misdeclaration as synthetic diamond grit (7104.21) if truly powder form