Synthetic Diamond Brilliant Cuts 4mm from Japan
4mm round brilliant synthetic diamonds in D-F color range, fully faceted and polished. Under 7104.91.5000 as other worked synthetic diamonds, unstrung and unset. High demand for pave settings in luxury watches.
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%
Import Tips
• Batch consistency reports help avoid disputes over grading uniformity
• Declare if any alloy content exceeds 2% precious metal per Chapter Note 5