Diamond Import Duty 2026: Navigate Duties, Cut Costs, Stay Compliant
Navigate Diamond Import Duty with confidence, complete duty rates, HTS classifications, and compliance rules for international trade.
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United StatesTypes of Customs Duties
Instantly calculate Diamond Import Duty and total landed costs using real-time official government data.
Most Favored Nation (MFN) Duty
Merchandise Processing Fee (MPF)
Harbor Maintenance Fee (HMF)
The United States import duty structure for diamonds is primarily governed by the Harmonized Tariff Schedule, where most rough diamonds enter duty-free under the Kimberley Process. Worked diamonds may be subject to ad valorem duties depending on their cut, quality, and setting status. Importers must also account for administrative fees and potential trade enforcement actions based on the specific country of origin.
| Duty/Tax Type Name | Standard Rate or Rate Range |
| Ad Valorem | 0% - 6.5% |
| Specific | Not Applicable |
| Compound | Not Applicable |
| Section 301 | 0% - 25% (Origin dependent) |
| Antidumping | Case-specific |
| Excise | 0% |
| MPF (Merchandise Processing Fee) | 0.3464% (Min $32.71 / Max $634.62) |
| HMF (Harbor Maintenance Fee) | 0.125% (Sea freight only) |
Types of Duties and Taxes:
• Ad Valorem Duty: Assessed as a percentage of the diamond's declared customs value, typically ranging from 0% for rough stones to 6.5% for certain worked varieties.
• Merchandise Processing Fee (MPF): A mandatory administrative fee for formal entries, calculated at 0.3464% with specific minimum and maximum dollar limits.
• Harbor Maintenance Fee (HMF): A 0.125% fee applied only to shipments arriving via ocean freight at US ports to fund infrastructure maintenance.
• Section 301 Duties: Additional tariffs applied to goods from certain countries, such as China, as part of ongoing trade enforcement actions.
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