Cubic Zirconia Rough Preforms from Mexico
Skull-melted synthetic cubic zirconia (ZrO2) crystals, roughly sawn into octahedral preforms for gemstone cutting. HTS 7104.29.00.00 covers other synthetic semiprecious stones, unworked or simply shaped, not set/strung. Popular diamond simulant but chemically distinct per chapter definitions.
Duty Rate — Mexico → United States
13%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Disclose chemical composition (ZrO2 stabilized with Y2O3) in entry docs to confirm semiprecious stone status
• Avoid retail packaging; bulk import prevents reclassification as finished jewelry