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7104.91.50.00/HPHT Synthetic Diamond Rounds 3mm/Japan

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%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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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

HPHT Synthetic Diamond Rounds 3mm from Japan — Import Duty Rate | HTS 7104.91.50.00