Product classification
HS code for Rough diamonds: 7102.31
Diamonds, non-industrial, unworked or simply sawn, cleaved or bruted, but not mounted or set.
Classification of rough diamonds under HS 7102.31
Rough diamonds intended for non-industrial use are classified under HS code 7102.31. This classification is applied to natural diamonds that are unworked or have only undergone very basic processing, such as being simply sawn, cleaved, or bruted. To fall under this code, the diamonds must not be polished, faceted, or otherwise worked into finished gemstones. The 'non-industrial' designation is critical; it refers to stones that possess the clarity, color, and size suitable for use in jewelry (gem-quality). The HS code structure for diamonds separates industrial stones from non-industrial stones at the primary level. Furthermore, the stones must be in a loose state, meaning they are not mounted, set, or strung. This code is heavily regulated globally under the Kimberley Process to prevent the trade of conflict diamonds, requiring specific certification for every shipment.
- Covers
- Uncut gem-quality diamond crystals
- Rough diamonds that have been simply sawn to remove flaws
- Cleaved diamond fragments intended for jewelry
- Bruted diamond rough (roughly shaped into a round form)
- Natural unworked diamonds for investment purposes
- Also under 7102.31
- De Beers rough diamonds
- Alrosa rough diamonds
- Rio Tinto rough diamonds
- Petra Diamonds roughs
Codes often confused with 7102.31
Common mistake. Rough diamonds are often confused with HS code 7102.21, which is for industrial-grade rough diamonds (bort). The distinction is based on the quality and intended use of the stone. Another common error is using 7102.39, which is for diamonds that have been further worked, such as polished or faceted stones. Importers must ensure the stone has not reached the 'worked' stage to remain in 7102.31.
Top exporters and importers of HS 710231 (the code used for rough diamonds), 2025
In 2025, the largest exporter of HS 710231 (the code used for rough diamonds) in UN Comtrade data was the United Arab Emirates, with about 28% of world exports; the largest importer in UN Comtrade data was India, with 56% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 710231, not only rough diamonds.
Top exporters 2025 · share of world exports
- 1 United Arab Emirates* ~$4.5B 28% of world exports · partner records ↗
- 2 Botswana* ~$3.2B 20% of world exports · partner records ↗
- 3 Belgium $2.8B 17% of world exports
World total: $16.2B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 India $10.8B 56% of world imports
- 2 United Arab Emirates* ~$2.5B 13% of world imports · partner records ↗
- 3 Belgium $2.4B 13% of world imports
World total: $19.3B 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 marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. 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 rough diamonds
Brazil classifies rough diamonds under NCM 7102.31.00: HS 7102.31 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about rough diamonds
What is the HS code for Rough diamonds?
The HS code for Rough diamonds is 710231 (Diamonds; non-industrial, unworked or simply sawn, cleaved or bruted, but not mounted or set). The HS code for non-industrial rough diamonds (unworked or simply sawn/cleaved) is 7102.31.
How do I classify Rough diamonds for customs?
Rough diamonds is classified under HS code 710231 — Diamonds; non-industrial, unworked or simply sawn, cleaved or bruted, but not mounted or set. This is a 6-digit subheading level code.
Does this code include synthetic diamonds?
No, synthetic or lab-grown diamonds are classified under heading 7104, specifically 7104.21 for unworked synthetic diamonds.
Which countries are the top exporters of rough diamonds (HS 710231)?
In 2025, the top exporters of HS 710231 (the code used for rough diamonds) in UN Comtrade data were the United Arab Emirates (about $4.5B, 28% of world exports), Botswana (about $3.2B) and Belgium ($2.8B). World exports came to about $16.2B, 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 rough diamonds (HS 710231)?
In 2025, the top importers of HS 710231 (the code used for rough diamonds) in UN Comtrade data were India ($10.8B, 56% of world imports), the United Arab Emirates (about $2.5B) and Belgium ($2.4B). World imports came to about $19.3B, 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.
Is the HS code for Rough diamonds the same in all countries?
The base HS code 710231 for Rough diamonds is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for rough diamonds in Brazil?
In Brazil, rough diamonds (HS 710231) is classified under NCM 7102.31.00.