Synthetic Ruby Boule
Cylindrical synthetic ruby boule grown by Verneuil method, roughly shaped with minimal faceting removal, destined for optical windows and laser rods. Falls under HTS 7104.29.00.00 as other synthetic precious stones (corundum), simply sawn or roughly shaped but not mounted/set. Excludes alloys or clad materials per chapter note 7.
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 cut/polished into finished jewelry stones
Worked beyond rough shaping into faceted gems moves to Chapter 71 heading for articles of stones.
If synthetic or reconstructed diamonds rather than corundum
7104.10 specific to synthetic diamonds; corundum (ruby/sapphire) uses 7104.29.
If in powder form (>90% through 0.5mm sieve)
Subheading notes define powder form separately from rough shapes.
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¢ Provide manufacturing process documentation (e.g
ā¢ flux-grown vs. hydrothermal) to confirm synthetic status
ā¢ Label as 'industrial rough' if applicable to avoid scrutiny as finished gems
Related Products under HTS 7104.29.00.00
Synthetic Alexandrite Rough
Color-change synthetic chrysoberyl (BeAl2O4) grown via Czochralski method, roughly shaped boules. Classified HTS 7104.29.00.00 as other synthetic precious stones, unworked beyond sawing, not strung/set. Rare color-change property but synthetic per chapter rules.
YAG Synthetic Garnet Rough
Yttrium aluminum garnet (YAG) synthetic crystals for laser rods/oscillators, roughly shaped rods. HTS 7104.29.00.00 covers synthetic semiprecious garnets, simply worked, industrial optics grade.
Synthetic Rutile Rough
Synthetic titanium dioxide (rutile) crystals for optical polarizers, roughly sawn. HTS 7104.29.00.00 as synthetic semiprecious stones.
Grown Synthetic Aquamarine Rough
Hydrothermal synthetic beryl (aquamarine color), rough cleaved crystals.
Synthetic Topaz Rough
Flux-grown synthetic aluminum fluorosilicate, rough boules.
Synthetic Sapphire Rough Crystal
Roughly shaped synthetic corundum crystals produced via the Verneuil flame fusion process, used primarily for watch bearings, laser components, and gem cutting. Classified under HTS 7104.29.00.00 as synthetic precious stones (corundum), unworked beyond simple sawing or rough shaping, not strung, mounted, or set. Meets chapter definitions for synthetic precious stones whether worked or graded but excluding strung or set forms.