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 industrial diamonds, not mounted or set, falling under tariff item 7102.21.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the diamonds are non-industrial (gem-quality)
Non-industrial diamonds, even unworked, fall under a different subheading.
If the diamonds are in dust or powder form
Diamond dust or powder is classified separately.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the stones are unworked and not sorted for gem use
• Keep records of the alluvial source and value for CBSA
• Verify compliance with the Kimberley Process Certification Scheme
Related Products under Tariff item 7102.21.00
Argyle Mine Rough Miners' Diamonds
Bulk lots of miners' diamonds from the Argyle pipe in Australia, in their raw, unselected form straight from extraction with visible matrix attachments. These are unworked industrial diamonds, not mounted or set, and fall under tariff item 7102.21.00 as unworked or simply sawn, cleaved or bruted.
Black Carbonado Diamond Crystals
Black carbonado diamond crystals are porous, aggregate diamond formations prized for their impact resistance in industrial drilling. They are unworked and not mounted or set, qualifying as unworked industrial diamonds under tariff item 7102.21.00.
Botswana Jwaneng Miners' Diamonds Bulk
Unselected bulk miners' diamonds from Jwaneng mine, featuring the typical cloudy and irregular characteristics of industrial rough stones. These are directly from mining without any work, making them unworked industrial diamonds under tariff item 7102.21.00.
Bruted Cubic Industrial Diamond Fragments
Industrial diamond fragments bruted into cubic shapes for use in diamond drilling bits. These are simply bruted, unworked industrial diamonds not suitable for gems, falling under tariff item 7102.21.00.
Bruted Diamond Lapping Plates
Roughly bruted diamond plates used for precision lapping of mechanical components. These are simply bruted industrial diamonds, not mounted or set, and not of gem quality, so they fall under tariff item 7102.21.00.
Bruted Girdle Rough Diamonds for Abrasives
Rough industrial diamonds with bruted (rounded) girdles, created by a basic friction process, used in abrasive powders and coatings. These diamonds are unworked or simply bruted, not mounted or set, and are not of gem quality, making them classifiable under tariff item 7102.21.00.