Unworked Tanzanite Rough from Mexico
Unworked tanzanite rough comprises zoisite mineral crystals known as tanzanite, in their unworked state from Tanzanian deposits, with no sawing or shaping applied. These stones are classifiable under tariff item 7103.10.00 as semi-precious stones that are unworked or simply sawn or roughly shaped, not strung, mounted, or set.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the tanzanite is not heat-treated, as most commercial tanzanite is heated to enhance color—this may affect classification
• Declare the stones as unworked rough on customs forms
• Verify that the export from Tanzania complies with local gemstone regulations