Rough Miners' Diamonds for Drilling Bits from Japan
Unworked natural diamonds specifically sourced for industrial use in manufacturing drill bits and cutting tools. Classified under HTS 7102.29.0020 as 'other miners' diamonds' due to their role in mining and drilling operations, not suitable for gem purposes. These diamonds are valued for their hardness in abrasive applications.
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
• Obtain certificates of origin and industrial use declarations to distinguish from gem-quality diamonds and avoid reclassification
• Declare exact carat weight and confirm unworked status; improper documentation can lead to audits by Customs
• Avoid common pitfalls like mixing with synthetic diamonds, which fall under different subheadings