Unworked or simply sawn, cleaved or bruted
Pearls, natural or cultured, whether or not worked or graded but not strung, mounted or set; pearls, natural or cultured, temporarily strung for convenience of transport. > Unworked or simply sawn, cleaved or bruted > Unworked or simply sawn, cleaved or bruted
Duty Rate (from China)
Products classified under Tariff item 7102.21.00
Argyle Mine Rough Miners' Diamonds
Bulk lots of unworked miners' diamonds from the Argyle mine, in their raw, unselected form straight from extraction with visible matrix attachments. These are unworked or simply sawn, cleaved or bruted diamonds, not mounted or set, and are not suitable for gem use due to their industrial-grade quality.
Black Carbonado Diamond Crystals
Black carbonado diamond crystals are porous, aggregate diamond formations prized for their impact resistance in industrial drilling. These are unworked or simply sawn, cleaved or bruted diamonds, not mounted or set, and are not suitable for gem use.
Botswana Jwaneng Miners' Diamonds Bulk
Unselected bulk miners' diamonds from the Jwaneng mine, featuring typical cloudy and irregular characteristics of industrial rough stones. These are unworked or simply sawn, cleaved or bruted diamonds, directly from mining without any further processing, and are not mounted or set.
Bruted Cubic Industrial Diamond Fragments
Rough diamonds primarily used in industrial applications such as cutting and grinding tools. These are unworked or simply sawn, cleaved, or bruted diamonds, not mounted or set, and are not gem-quality.
Bruted Miners' Diamonds Industrial Grade
Rough diamonds from miners' parcels that have undergone simple bruting (girder shaping) for dressing tools and abrasives. These are unworked or simply sawn, cleaved or bruted diamonds, not mounted or set, and are not suitable for gem use.
Carbonado Miner's Diamonds
Carbonado miner's diamonds are the toughest natural diamond variant used by miners for drill crowns and saw blades. These are unworked or simply sawn, cleaved or bruted diamonds, not mounted or set, and are not suitable for gem use.
Cleaved Industrial Miners' Diamonds 3-5 Carat
Natural rough diamonds from mining operations, simply cleaved into 3-5 carat pieces for industrial saw blades and grinding wheels. These are unworked or simply sawn, cleaved or bruted diamonds, not mounted or set, and are not suitable for jewelry.
Miners' Type Ia Natural Diamond Rough
Rough natural diamonds classified as miners' diamonds, unworked except for simple sawing or cleaving, primarily Type Ia with nitrogen impurities. These are unworked or simply sawn, cleaved or bruted diamonds, not mounted or set, and are not suitable for gem use.
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. These are unworked or simply sawn, cleaved or bruted diamonds, not mounted or set, and are not suitable for gem use.
Raw Carbonado Rough Stones
Raw carbonado rough stones are unprocessed polycrystalline diamonds extracted from alluvial deposits, featuring their characteristic black, opaque appearance. These are unworked or simply sawn, cleaved or bruted diamonds, not mounted or set, and are not suitable for gem use.
Rough Miners' Diamonds for PDC Drill Bits
Unworked miners' diamonds selected for polycrystalline diamond compact (PDC) cutting tools in drilling operations. These are unworked or simply sawn, cleaved or bruted diamonds, not mounted or set, and are not suitable for gem use due to inclusions.
Rough Miners' Diamonds from Kimberley Mine
Unworked miners' diamonds extracted directly from primary diamond mines like Kimberley, featuring irregular shapes and natural inclusions typical of rough industrial-grade stones. These are unworked or simply sawn, cleaved or bruted diamonds, not mounted or set, and are not suitable for gem use.
Russian Mir Mine Unworked Miners' Diamonds
Raw miners' diamonds from the Mir pipe in Russia, in natural unselected parcels with high industrial yield potential. These are unworked or simply sawn, cleaved or bruted diamonds, not mounted or set, and are not suitable for gem use.
Sawn Miners' Diamonds for Diamond Wire Sawing
Simply sawn miners' diamonds prepared for embedding in diamond wire used in stone cutting and semiconductor slicing. These are unworked or simply sawn, cleaved or bruted diamonds, not mounted or set, and are not suitable for gem use.
South African Venetia Miners' Rough Diamonds
Rough, unselected diamonds from the Venetia mine, embodying the pure miners' category with minimal human intervention post-extraction. These are unworked or simply sawn, cleaved or bruted diamonds, not mounted or set, and are not suitable for gem use.