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7104.91.50.00/Blue HPHT Synthetic Diamonds Melee/Japan

Blue HPHT Synthetic Diamonds Melee from Japan

Tiny blue synthetic diamonds (0.8-1.2mm) created via HPHT with boron doping for color. HTS 7104.91.5000 for synthetic diamond melee, worked but loose. Used in micro-pave jewelry designs.

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

• Spectral analysis certificates prove color doping method for customs

• Separate blue from colorless parcels to prevent averaging valuation errors