Raw Carbonado Rough Stones from China
Raw carbonado rough stones are unprocessed polycrystalline diamonds extracted from alluvial deposits, featuring their characteristic black, opaque appearance. Classified under HTS 7102.21.10.10 as miner's carbonados, they are industrial-grade and not suitable for jewelry due to impurities. Ideal for further processing into abrasives or high-pressure tools.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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)
Import Tips
• Include geological reports specifying carbonado type to distinguish from synthetic polycrystalline diamonds
• Ensure CITES compliance if sourced from regions with export restrictions on natural diamonds
• Avoid common pitfall of undervaluation; carbonados command premium pricing despite industrial grade