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U.S. imports of diamonds, rough and unsorted (SITC 66721) totaled $2K in July 2026, traded with 3 countries.
Diamonds, Rough and Unsorted imports of $2K in July 2026 ran 269% above the year-to-date monthly average of $670.
Last updated: July 2026 dataRough, unsorted diamonds — as extracted from the mine and not yet sorted by quality, size, or gem versus industrial grade — are subject to the Kimberley Process Certification Scheme (KPCS), which requires a government-validated certificate of origin accompanying every shipment to prevent trade in conflict diamonds. The US implemented KPCS requirements through the Clean Diamond Trade Act, and CBP enforces certificate verification at entry; shipments lacking a valid KP certificate are refused importation. The unsorted nature of this heading means a single parcel may contain both gem-quality and industrial-quality stones, and the commercial value can vary dramatically depending on the eventual sort outcome.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1 shipments/mo
Basic heading 66721 · $2K of $26.7B
Every shipment of rough diamonds must be accompanied by a Kimberley Process Certificate issued by the exporting country's designated authority. The certificate must be in a tamper-resistant container sealed with the KP certificate attached. CBP verifies the certificate at entry; shipments without a valid certificate are refused. The US KP authority is the US Census Bureau, which also handles US export certificates.
Because unsorted rough diamonds contain a mix of gem-quality and industrial-quality stones of varying sizes, transaction value is the standard CBP appraisement method, but it can be difficult to verify without a sort. CBP may request additional documentation — such as the seller's sort estimates or independent valuation — if the declared value appears inconsistent with the parcel's characteristics. Importers should retain all purchase documentation and any pre-shipment valuation reports.
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SITCSection 6
Imports · July 2026
origin
Tanzania and Hong Kong together supply 100% of it.
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Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$2KYoY · Pro
Exports
$0YoY · Pro
12-mo low · imports
YoY · ProFewer than 6 of the last 12 months reported trade above $500K; the trend chart is not shown for thin series.
Through July 2026. Source: U.S. Census Bureau.