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.
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 set in jewelry as finished articles
Per Note 9, set synthetic diamonds become 'articles of jewelry' in 7113.
If industrial non-gem quality
Rough industrial natural diamonds use 7102.31; synthetic industrial may follow.
If after blocking or faceting prep
Pre-jewelry processing beyond rough shaping is 'worked synthetic'.
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 Type classification reports; Type IIa often closest to natural, higher scrutiny
ā¢ Declare crystal orientation if sawn; maintains rough status
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.
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.
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.
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.