Carbonados
Diamonds, whether or not worked, but not mounted or set: > Industrial: > Unworked or simply sawn, cleaved or bruted: > Miners' diamonds > Carbonados
Duty Rate (from China)
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
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)
Products classified under HTS 7102.21.10.10
Natural Carbonado Diamond
Carbonado diamonds are a rare polycrystalline form of diamond known as black diamonds, used primarily in industrial applications due to their extreme toughness and opacity. They fall under HTS 7102.21.10.10 as unworked or simply sawn, cleaved, or bruted miner's diamonds specifically classified as carbonados. These are not gem-quality diamonds but valued for their durability in cutting tools and drilling.
Raw Carbonado Rough Stones
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.
Carbonado Miner's Diamonds
Carbonado miner's diamonds are specifically the toughest natural diamond variant used by miners for drill crowns and saw blades. HTS 7102.21.10.10 covers these unworked or simply processed carbonados, distinguishing them from gem-quality or other industrial diamonds. Their unique structure resists fracturing under extreme conditions.
Black Carbonado Diamond Crystals
Black carbonado diamond crystals are porous, aggregate diamond formations prized for their impact resistance in industrial drilling. They qualify under HTS 7102.21.10.10 as unworked miner's carbonados, not mounted or set. Primarily sourced from Brazil or Central Africa.