Natural Diamond Grinding Powder from China
Powder derived from crushed natural diamonds, compliant with 90% through 0.5mm sieve, used in high-end polishing compounds. HTS 7105.10.00 covers both natural and synthetic diamond powders explicitly. Treated as precious stone powder per chapter notes.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Obtain Kimberley Process certification for natural diamonds to prove origin
• Test sieve aperture strictly; failure reclassifies to 7105.21 dust
• Document end-use as abrasive to prevent jewelry-related scrutiny