U.S. imports of Nonindustrial Diamonds, Unworked or Simply Sawn, Cleaved, or Bruted (HS 710231) totaled $1.8M in August 2026, imported from 9 countries.
Importers of Nonindustrial Diamonds, Unworked or Simply Sawn, Cleaved, or Bruted paid $11K in duties in August 2026, an average duty rate of 0.62% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Nonindustrial Diamonds, Unworked or Simply Sawn, Cleaved, or Bruted imports of $1.8M in August 2026 ran 306% above the year-to-date monthly average of $442K.
Last updated: August 2026 dataGem-quality rough diamonds that have received only minimal shaping — sawing, cleaving, or bruting to establish basic form — are classified here before they enter the cutting and polishing pipeline. Botswana and South Africa lead US imports under this heading, with Namibia and Angola also significant sources, all reflecting the geographic concentration of gem-quality primary production in sub-Saharan Africa. As with all rough diamonds, Kimberley Process Certification Scheme compliance is a non-negotiable entry requirement. Importers and trading houses should be aware that the line between 'simply sawn' and more substantially worked can be a classification flashpoint, particularly for stones that have undergone preliminary shaping at the mine site.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
16 import shipments a month
Customs and Border Protection generally treats 'simply sawn, cleaved, or bruted' as operations that establish a basic geometric form without creating facets or a finished surface. Once a stone has been faceted, polished, or drilled — even partially — it moves into the worked nonindustrial diamond heading (710239). Importers of partially processed rough should obtain a technical description from the cutter to support the correct classification.
No. Lab-grown (synthetic) diamonds are classified under a separate chapter 71 heading for synthetic stones, not alongside natural diamonds in 710231. Importers must clearly identify whether stones are natural or synthetic on entry documentation, as misclassification between the two categories is a known area of CBP scrutiny.
Subheading 2 of 5 in heading 7102
Subheading 710231 · $1.8M of $478.4M
ImportsExports
Imports
$1.8MYoY · free account
Exports
$2.1MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $6.0M of Nonindustrial Diamonds, Unworked or Simply Sawn, Cleaved, or Bruted and exported $11.5M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
Botswana and Namibia together supply 93% of it. Canada pays 10.0% duty; Botswana 0.0%.
customs district
destination
entry
rate provision · imports
94.9% enters free of duty; duty collected equals 0.62% of imports for consumption.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 7102310000 | Diam Ex Ind Unwkd or Smpl Swn Clvd or Bruted | $1.8M | 0.62% | 5.14% | $11K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7102310000 | Diam Ex Ind Unwkd or Smpl Swn Clvd or Bruted | $2.1M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Trade Directory
List your company under HS 710231 — Nonindustrial Diamonds, Unworked or Simply Sawn, Cleaved, or Bruted, so the companies trading it can find you. Be the first supplier listed.