HPHT Synthetic Diamond Rounds 3mm from Japan
Round brilliant cut synthetic diamonds produced by High Pressure High Temperature (HPHT) method, 3mm size, graded VS clarity. HTS 7104.91.5000 applies to these unmounted, unstrung lab-created diamonds whether worked or graded. Used primarily in fine jewelry manufacturing.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Use tamper-proof packaging for loose stones to prevent loss claims and ensure accurate weight declarations
• Provide spectrographic analysis confirming no natural impurities exceeding synthetic thresholds