# HS code 7104.91: Diamonds > HS code 7104.91 covers diamonds, other than those classified in 7104.21, 7104.29 and 7104.99. It sits in heading 71.04 (synthetic or reconstructed precious or semi-precious stones, whether or not worked or graded but not strung, mounted or set; ungraded synthetic or reconstructed precious or semi-precious stones, temporarily strung for convenience of transport) in chapter 71 (natural or cultured pearls, precious or semi-precious stones, precious metals, metals clad with precious metal, and articles thereof; imitation jewellery; coin). Other goods of heading 71.04 are classified under 7104.10 (piezo-electric quartz), 7104.21 (other, unworked or simply sawn or roughly shaped, diamonds), 7104.29 (other, unworked or simply sawn or roughly shaped, other) and 7104.99 (other, other). National tariff lines under 7104.91 are live on border.bot for the United States (2 lines, also used by 1 other country). Source: https://border.bot/hs-codes/710491 Last updated: 11 October 2026 [HS codes](https://border.bot/hs-codes) / [Chapter 71](https://border.bot/hs-codes/71) / [71.04](https://border.bot/hs-codes/7104) / [7104.91](https://border.bot/hs-codes/710491) ## Key facts - HS code: 7104.91 - Covers: Diamonds - Heading: [71.04: Synthetic or reconstructed precious or semi-precious stones, whether or not worked or graded but not strung, mounted or set; ungraded synthetic or reconstructed precious or semi-precious stones, temporarily strung for convenience of transport](https://border.bot/hs-codes/7104) - Chapter: [71: Natural or cultured pearls, precious or semi-precious stones, precious metals, metals clad with precious metal, and articles thereof; imitation jewellery; coin](https://border.bot/hs-codes/71) - Edition: HS2022 - Duty in the United States: [See its 2 lines](https://border.bot/countries/united-states/hs-codes/710491) ## What this code covers HS code 7104.91 covers diamonds, other than those classified in 7104.21, 7104.29 and 7104.99. The legal text of the subheading is “Other: Diamonds”, read under “Other”, in HS2022. ## What it doesn’t cover Other goods of heading 71.04 are classified under 7104.10 (piezo-electric quartz), 7104.21 (other, unworked or simply sawn or roughly shaped, diamonds), 7104.29 (other, unworked or simply sawn or roughly shaped, other) and 7104.99 (other, other). - [7104.10](https://border.bot/hs-codes/710410) Piezo-electric quartz - [7104.21](https://border.bot/hs-codes/710421) Other, unworked or simply sawn or roughly shaped: Diamonds - [7104.29](https://border.bot/hs-codes/710429) Other, unworked or simply sawn or roughly shaped: Other - [7104.99](https://border.bot/hs-codes/710499) Other: Other ## How it is structured 7104.91 is a six-digit subheading. Its first two digits, 71, are the chapter; the first four, 7104, are heading 71.04; the last two, 91, identify the subheading within the heading. Countries add their own digits after these six for their national tariff lines. - Chapter 71: Natural or cultured pearls, precious or semi-precious stones, precious metals, metals clad with precious metal, and articles thereof; imitation jewellery; coin - Heading 71.04: Synthetic or reconstructed precious or semi-precious stones, whether or not worked or graded but not strung, mounted or set; ungraded synthetic or reconstructed precious or semi-precious stones, temporarily strung for convenience of transport - Within the heading: Other - Subheading 7104.91: Diamonds ## In other countries National tariff lines under 7104.91 are live on border.bot for the United States (2 lines, also used by 1 other country). - [United States](https://border.bot/countries/united-states/hs-codes/710491): 2 lines, used by 1 other country - Previous subheading: [7104.29](https://border.bot/hs-codes/710429) Other, unworked or simply sawn or roughly shaped: Other - Next subheading: [7104.99](https://border.bot/hs-codes/710499) Other: Other ## Frequently asked questions ### What does HS code 7104.91 cover? HS code 7104.91 covers diamonds, other than those classified in 7104.21, 7104.29 and 7104.99. ### Which heading and chapter is HS code 7104.91 in? HS code 7104.91 is in heading 71.04 (synthetic or reconstructed precious or semi-precious stones, whether or not worked or graded but not strung, mounted or set; ungraded synthetic or reconstructed precious or semi-precious stones, temporarily strung for convenience of transport) in chapter 71 (natural or cultured pearls, precious or semi-precious stones, precious metals, metals clad with precious metal, and articles thereof; imitation jewellery; coin). ### Where are goods of heading 71.04 classified when 7104.91 doesn’t fit? Other goods of heading 71.04 are classified under 7104.10 (piezo-electric quartz), 7104.21 (other, unworked or simply sawn or roughly shaped, diamonds), 7104.29 (other, unworked or simply sawn or roughly shaped, other) and 7104.99 (other, other). ### Which countries’ tariffs list national lines under HS code 7104.91? National tariff lines under 7104.91 are live on border.bot for the United States (2 lines, also used by 1 other country). ## Sources and updates The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026. This page was last updated on 11 October 2026. Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling. Machine-readable: https://border.bot/hs-codes/710491.json