Rough Industrial Diamonds
Rough diamonds primarily used in industrial applications such as cutting and grinding tools. These are unworked or simply sawn, cleaved, or bruted diamonds classified under HTS 7102.21.40.00 as they are not gem-quality and intended for non-jewelry uses.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If suitable for industrial use but worked beyond simple bruting
Diamonds that are chipped, cleaved, or roughly shaped beyond bruting are classified as 'worked' under 7102.31.
If completely unworked (not sawn, cleaved, or bruted)
Unsawn or uncleaved diamonds fall under the unworked category regardless of industrial quality.
If synthetic or artificial diamonds
Synthetic industrial diamonds are classified in Chapter 71 heading 7104, not natural diamonds in 7102.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Obtain Kimberley Process Certificate for all diamond imports to verify conflict-free origin and enable duty-free entry
• Provide detailed documentation proving industrial use, as gem-quality diamonds fall under different subheadings
• Avoid misclassification as worked diamonds (7102.29) by ensuring no polishing beyond bruting
Related Products under HTS 7102.21.40.00
Industrial Diamond Cleavage Plates
Thin plates of industrial diamonds created by cleavage for use in wire sawing applications. These qualify under HTS 7102.21.40.00 as simply cleaved industrial diamonds not mounted or set.
Synthetic-Like Natural Industrial Diamonds
Low-clarity natural diamonds resembling synthetics, used in grinding and lapping compounds. Classified in HTS 7102.21.40.00 as other industrial unworked/sawn diamonds per chapter notes excluding alloys.
Sawn Diamond Drill Blanks
Industrial diamonds sawn into precise blanks for geological and oilfield drilling bits. HTS 7102.21.40.00 applies to these simply sawn, non-gem industrial diamonds.
Bruted Diamond Lapping Plates
Roughly bruted diamond plates used for precision lapping of mechanical components. These fall under HTS 7102.21.40.00 as simply bruted industrial diamonds.
Sawn Industrial Diamond Slabs
Industrial diamonds that have been simply sawn into slabs for use in diamond saw blades and drilling applications. Classified under HTS 7102.21.40.00 as they represent 'other' unworked or simply processed industrial diamonds.
Cleaved Diamond Saw Blanks
Industrial diamonds cleaved into blanks specifically for circular saw applications in stone cutting. These fall under HTS 7102.21.40.00 as simply cleaved, non-gem quality diamonds for industrial purposes.