Black Carbonado Aggregates from Germany
Black carbonado diamond aggregates, known as black diamonds in mining circles, used exclusively for high-pressure industrial cutting and grinding. Under HTS 7102.29.00.10 as carbonados, these porous diamond masses exceed 2% carbon purity but lack gem brilliance. Sourced primarily from Brazil and Central Africa.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Require X-ray diffraction certificates proving polycrystalline diamond structure to distinguish from graphite or other carbon forms
• Declare exact parcel weights; carbonados often imported in 1-10 carat miner parcels prone to undervaluation scrutiny
• Note Brazilian origin quotas may apply; verify CITES compliance though carbonado exempt from diamond trade controls