CVD Lab-Grown Diamond Rough
Rough synthetic diamonds grown via Chemical Vapor Deposition, typically in plate or block form, simply sawn into facets. Falls under HTS 7104.21.00.00 as unworked or roughly shaped synthetic diamonds, prior to gem-quality processing.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| šØš³China | 3% | +20.0% | 23% |
| š²š½Mexico | 3% | +10.0% | 13% |
| šØš¦Canada | 3% | +10.0% | 13% |
| š©šŖGermany | Free | +10.0% | 10% |
| šÆšµJapan | Free | +12.5% | 12.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If faceted or polished for gem use
Any finishing beyond rough shaping moves to 'other synthetic' worked subheading.
If strung permanently or mounted
Chapter Note 12 prioritizes 7115 for any set/mounted precious stones.
If in powder form <0.5mm sieve passing 90%
Synthetic diamond powder classifies under chemicals heading 3824, not 7104.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code ā and can price the duty on it in the same conversation.
Import Tips & Compliance
ā¢ Include CVD reactor specs in entry docs to prove synthetic nature
ā¢ Rough CVD plates often temporarily strung; declare explicitly per subheading note
Related Products under HTS 7104.21.00.00
Synthetic Rough Diamonds
Unworked synthetic diamonds in their natural crystalline form, directly from the chemical vapor deposition or high-pressure high-temperature process. Classified under HTS 7104.21.00.00 as synthetic diamonds that are unworked or simply sawn or roughly shaped, not strung, mounted, or set.
HPHT Synthetic Diamond Melee Parcels
Small synthetic diamonds (melee size <0.1 carat) produced via High-Pressure High-Temperature method, roughly shaped into pyramidal or octahedral forms. HTS 7104.21.00.00 covers these unworked/slightly sawn synthetic diamonds not intended for jewelry setting yet.
Synthetic Diamond Cleavage Rough
Synthetic diamonds cleaved along natural planes to create roughly shaped pieces, unpolished and ungraded. HTS 7104.21.00.00 applies to these simply sawn synthetic diamonds not yet strung or set for retail.
HPHT Type IIa Synthetic Diamond Crystals
Colorless Type IIa synthetic diamonds from HPHT process, in octahedral crystal form, roughly shaped without facets. Classified in HTS 7104.21.00.00 as unworked synthetic diamonds suitable for further gem processing.
Lab-Created Diamond Sawing Blocks
Synthetic diamond blocks prepared for sawing into individual stones, roughly shaped with minimal processing. HTS 7104.21.00.00 for these unmounted synthetic diamonds in bulk form.