HS code · 6-digit subheading
HS Code 7104.91 – Stones; diamonds, n.e.c. in heading 7104, worked or graded but not strung, mounted or set; ungraded synthetic or reconstructed precious or semi-precious stones, temporarily strung for convenience of transport
HS code 7104.91 is the 6-digit subheading for stones, diamonds, n.e.c. in heading 7104, worked or graded but not strung, mounted or set, ungraded synthetic or reconstructed precious or semi-precious stones, temporarily strung for convenience of transport. It is used for polished round brilliant diamonds, princess cut diamonds, emerald cut diamonds, graded loose diamonds and temporarily strung synthetic ruby beads.
What HS 7104.91 covers
This HS code covers natural diamonds that have been worked, meaning they are cut, polished, and faceted, or graded, but are not yet incorporated into jewelry. It also includes ungraded synthetic or reconstructed precious/semi-precious stones temporarily strung for convenience of transport. The primary focus is on finished, loose natural diamonds, representing a significant value-add stage in the diamond supply chain. Importers and exporters are typically diamond cutters, polishers, wholesalers, and jewelry manufacturers. Key aspects include the '4 Cs' (carat, cut, clarity, color), certification from reputable gemological laboratories (e.g., GIA, IGI), and market demand for specific cuts and sizes. This category is crucial for the global luxury jewelry market.
- Covers
- Polished round brilliant diamonds
- Princess cut diamonds
- Emerald cut diamonds
- Graded loose diamonds
- Temporarily strung synthetic ruby beads
- Temporarily strung lab-grown sapphire chips
- Examples
- GIA certified diamonds
- Forevermark diamonds (loose)
- various wholesale diamond dealers
- Graff Diamonds (for high-end loose stones)
Codes often confused with 7104.91
Common mistake. This code is for *worked* natural diamonds, distinguishing it from *unworked* diamonds (710421). The 'temporarily strung' part for synthetic stones is a specific inclusion, otherwise, worked synthetic stones fall under 710499.
Top exporters and importers of HS code 710491, 2025
In 2025, the largest exporter of HS code 710491 in UN Comtrade data was India, with 63% of world exports; the largest importer in UN Comtrade data was the United States, with 30% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 India $1.2B 63% of world exports
- 2 Hong Kong $284M 15% of world exports
- 3 United States $123M 6.5% of world exports
World total: $1.9B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $568M 30% of world imports
- 2 Hong Kong $365M 19% of world imports
- 3 China $252M 13% of world imports
World total: $1.9B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for 7104.91
Brazil does not split HS 7104.91: its NCM code is 7104.91.00.
All Brazil NCM codes in heading 71.04 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 7104.91
What is HS code 710491?
HS code 710491 is a 6-digit subheading in the Harmonized System that covers: Stones; diamonds, n.e.c. in heading 7104, worked or graded but not strung, mounted or set; ungraded synthetic or reconstructed precious or semi-precious stones, temporarily strung for convenience of transport. This HS code covers natural diamonds that have been worked, meaning they are cut, polished, and faceted, or graded, but are not yet incorporated into jewelry. It also includes ungraded synthetic or reconstructed precious/semi-precious stones temporarily strung for convenience of transport. The primary focus is on finished, loose natural diamonds, representing a significant value-add stage in the diamond supply chain. Importers and exporters are typically diamond cutters, polishers, wholesalers, and jewelry manufacturers. Key aspects include the '4 Cs' (carat, cut, clarity, color), certification from reputable gemological laboratories (e.g., GIA, IGI), and market demand for specific cuts and sizes. This category is crucial for the global luxury jewelry market.
What products fall under HS code 710491?
Polished round brilliant diamonds, Princess cut diamonds, Emerald cut diamonds, Graded loose diamonds, Temporarily strung synthetic ruby beads, Temporarily strung lab-grown sapphire chips
What are common misclassifications for HS code 710491?
This code is for *worked* natural diamonds, distinguishing it from *unworked* diamonds (710421). The 'temporarily strung' part for synthetic stones is a specific inclusion, otherwise, worked synthetic stones fall under 710499.
Which countries are the top exporters of goods under HS code 710491?
In 2025, the top exporters of HS code 710491 in UN Comtrade data were India ($1.2B, 63% of world exports), Hong Kong ($284M) and the United States ($123M). World exports came to about $1.9B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 710491?
In 2025, the top importers of HS code 710491 in UN Comtrade data were the United States ($568M, 30% of world imports), Hong Kong ($365M) and China ($252M). World imports came to about $1.9B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 710491 structured?
HS code 710491 is a 6-digit subheading under the Harmonized System. The first 2 digits (71) identify the chapter, digits 3-4 (04) identify the heading, and digits 5-6 (91) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 710491?
In Brazil, HS code 710491 is NCM 7104.91.00. The last two digits are 00 because Brazil does not split this HS code further.