Harmonized Tariff Schedule of the United States · HTS code · HS 7104.91
7104.91.10: Synthetic diamonds (other): Cut but not set, and suitable for use in the manufacture of jewelry
Synthetic diamonds (other)
Not declarable on its own: use one of its 1 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026
- 7104 Synthetic or reconstructed precious or semiprecious stones, whether or not worked or graded but not strung, mounted or set; ungraded synthetic or reconstructed precious or semiprecious stones, temporarily strung for convenience of transport:
- Other:
- 7104.91 Diamonds:
- 7104.91.10 Cut but not set, and suitable for use in the manufacture of jewelry
What you pay
Importing into USA
US additional duties of HTS chapter 99 in force on 22 October 2026 are included (Section 301, 232, 338 and 201). IEEPA duties are no longer collected after the Supreme Court ruling of February 2026. Conditional exemptions (US content, end use, metal share) are not computed: check the provision.
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
Additional duties and charges 2
- Additional dutySection 301 — China — technology transfer, IP and innovation (2018 actions and 2024 four-year review) 7.5%
- Applies to goods from
- China
- In force
- from 1 September 2019
- Legal act
- HTSUS 9903.88.15
- Additional dutyRussia rate increase (Pub. L. 117-110) — Russian Federation (rates in lieu of column 2) 35%
- Applies to goods from
- Russia
- In force
- from 28 June 2022
- Legal act
- HTSUS 9903.90.08
Footnotes
- 9903.90.08 Articles the product of the Russian Federation, as provided for in U.S. note 30(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 30(b) to this subchapter
Same subheading in other tariffs
7104.91 Synthetic or reconstructed precious or semi-precious: other, diamonds
UK Free Third-country duty 1 tariff line 
EU Free Third-country duty 1 tariff line 
Türkiye Free Third-country duty 2 tariff lines 
Canada Free Third-country duty 3 tariff lines 
Mexico Free Third-country duty 1 tariff line 
Brazil 9% Third-country duty 1 tariff line 
Argentina 9% Third-country duty 1 tariff line 
Peru Free Third-country duty 1 tariff line 
New Zealand Free Third-country duty 1 tariff line 
Japan Free Third-country duty 1 tariff line 
Taiwan Free Third-country duty 2 tariff lines 
GCC 5% Third-country duty 1 tariff line 
Switzerland Free Third-country duty 1 tariff line 
Norway Free Third-country duty 1 tariff line 
North Macedonia 10% Third-country duty 1 tariff line 
Nigeria 5% Third-country duty 1 tariff line USA lines: 7104.91
Legal notes
Code history
Since 2022; before, these goods were classified under 7104.90.
In the Harmonized Tariff Schedule of the United States, 7104.91.10 is one of 2 lines under subheading 7104.91, synthetic or reconstructed precious or semi-precious: other, diamonds.
The general duty is free, and quantities are declared in p/st.
For the same subheading, the UK duty is free, the EU duty is free, the Türkiye duty is free, the Canada duty is free, the Mexico duty is free, the Brazil duty is 9%, the Argentina duty is 9%, the Peru duty is free, the New Zealand duty is free, the Japan duty is free, the Taiwan duty is free, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 10% and the Nigeria duty is 5%.
The United States imported goods of subheading 7104.91 worth US$939m in 2024; the largest supplier was India, and the United Kingdom ranked 7th with US$3m.
Questions and answers
What is the USA import duty for HTS code 7104.91.10?
The general duty in the Harmonized Tariff Schedule of the United States is free; the supplementary unit is p/st. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.
Where does the United States import these goods from?
For subheading 7104.91 as a whole, the largest supplier in 2024 was India (US$852m), followed by Thailand.