Synthetic Sapphire Rough Crystal from Canada
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.
Duty Rate — Canada → United States
13%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Require lab certification (e.g
• GIA) confirming synthetic origin to distinguish from natural sapphires in HTS 7103
• Declare exact production method (flame fusion, Czochralski) in documentation; avoid 'gem-quality' phrasing that implies finished gems