Synthetic Rough Diamonds
Synthetic rough diamonds in their natural crystalline form, directly from CVD or HPHT processes, unworked and ungraded. These synthetic diamonds are not yet strung, mounted, or set, and are intended for further processing.
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:
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 diamonds are unworked and ungraded to qualify for this tariff item
• Provide production certificates to verify synthetic origin
• Ensure the goods are not strung, mounted, or set, as that would change the classification
Related Products under Tariff item 7104.21.00
CVD Lab-Grown Diamond Rough
CVD lab-grown diamond rough in plate or block form, simply sawn into facets, unworked or roughly shaped. These synthetic diamonds are not yet graded, strung, mounted, or set, and are destined for further processing into gem-quality stones.
HPHT Synthetic Diamond Melee Parcels
HPHT synthetic diamond melee parcels, small diamonds under 0.1 carat, roughly shaped into pyramidal or octahedral forms without faceting. These unworked synthetic diamonds are suitable for further gem processing and are not yet strung, mounted, or set.
HPHT Type IIa Synthetic Diamond Crystals
HPHT Type IIa synthetic diamond crystals, colorless and in octahedral crystal form, roughly shaped without facets. These unworked synthetic diamonds are intended for further processing into gemstones and are not yet strung, mounted, or set.
Lab-Created Diamond Sawing Blocks
Lab-created diamond sawing blocks, synthetic diamond blocks prepared for sawing into individual stones, roughly shaped with minimal processing. These unmounted synthetic diamonds are in bulk form and not yet graded or set.
Synthetic Diamond Cleavage Rough
Synthetic diamond cleavage rough, synthetic diamonds cleaved along natural planes to create roughly shaped pieces, unpolished and ungraded. These simply sawn synthetic diamonds are not yet strung, mounted, or set for retail.