Synthetic Diamond Powder
Synthetic diamond powder, where 90% or more passes through a 0.5 mm sieve, is used for industrial grinding and polishing. It is classified under tariff item 7105.90.00 as 'other' dust and powder of synthetic precious stones, specifically excluding diamond powder classified elsewhere.
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 |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the diamond powder is natural, not synthetic.
Natural diamond powder is classified under a different subheading of heading 71.05.
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
• Confirm the powder is synthetic and not natural, as this affects classification
• Provide a sieve analysis to prove 90% passes through a 0.5 mm mesh
• Be aware that diamond powder may also be classified under heading 71.05 if it is natural, so keep documentation of its synthetic origin
Related Products under Tariff item 7105.90.00
Alexandrite Powder
Synthetic alexandrite (chrysoberyl) powder, a semi-precious stone powder, is used for research into color-change effects and as an abrasive in polishing. It is classified under tariff item 7105.90.00 as 'other' dust and powder of synthetic precious or semi-precious stones, excluding diamonds.
Aquamarine Grinding Powder
Natural beryl (aquamarine) powder, a semi-precious stone powder, is used for high-end lapidary work and optical applications. It falls under tariff item 7105.90.00 as 'other' dust and powder of natural precious or semi-precious stones.
Emerald Grinding Powder
Fine powder from natural or synthetic emeralds, used for gemstone faceting and precision grinding, is classified under tariff item 7105.90.00. This item covers 'other' dust and powder of precious or semi-precious stones, excluding diamond powder.
Garnet Lapping Powder
Natural almandine garnet powder, used for precision lapping of optical components, is classified under tariff item 7105.90.00. This item covers 'other' dust and powder of natural semi-precious stones, provided the powder meets the sieve requirement.
Moissanite Micron Powder
Synthetic moissanite (silicon carbide gem) powder, used in advanced polishing compounds, is classified under tariff item 7105.90.00. This item covers 'other' dust and powder of synthetic precious or semi-precious stones, excluding diamond.
Natural Ruby Dust
Ultrafine dust from natural rubies, with 90% or more passing through a 0.5 mm mesh, is used in precision lapping and optical polishing. It is classified under tariff item 7105.90.00 as 'other' dust and powder of natural precious stones.