Bruted Miners' Diamonds Industrial Grade from Japan
Rough diamonds from miners' parcels that have undergone simple bruting (girder shaping) for dressing tools and abrasives. HTS 7102.21.10.20 covers these as 'other' unworked industrial diamonds not mounted, valued for hardness over clarity. Used in surface grinding and lapping operations.
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
• Document bruting process doesn't exceed 'simple' working threshold per HTS definitions
• Use GIA or equivalent industrial diamond certification for customs valuation disputes
• Declare as 'industrial only - not for jewelry remounting' to preempt reclassification attempts