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SITCSection 2
U.S. imports of industrial diamonds, worked (beyond simply sawn, cleaved or bruted) (SITC 27719) totaled $337K in April 2026, traded with 12 countries.
Importers of Industrial Diamonds, Worked (Beyond Simply Sawn, Cleaved or Bruted) paid $27K in duties in April 2026 — an effective duty rate of 8.0% on $334K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataWorked industrial diamonds — processed beyond the initial sawn, cleaved, or bruted stage — include shaped, polished, or otherwise finished stones used as precision cutting inserts, wire-drawing dies, dressing tools, and heat spreaders in electronics. The value-add from working is substantial, and the distinction from unworked industrial diamonds (SITC 27711) is the key classification boundary. Both natural and synthetic worked industrial diamonds compete in this space, with synthetic stones increasingly dominant in abrasive and cutting-tool applications due to consistent quality and controlled sizing.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Sawing, cleaving, and bruting are considered minimal processing and remain within the unworked heading (27711). Any further shaping — such as grinding, polishing, lapping, or forming into a specific geometry for a tool insert or die — constitutes 'working' and moves the product into the worked category (27719). The commercial form of the finished product (e.g., a shaped die blank versus a rough stone) is the practical indicator.
Worked industrial diamonds are not broadly subject to major antidumping or countervailing duty orders in the US at this time, but importers should verify current CBP and USITC guidance, particularly for synthetic diamond products from specific origins where trade-remedy investigations have occurred in related abrasive categories. Trade-remedy landscapes evolve; consult a licensed customs broker for current status.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| THAILAND | -- | $288K | +$288K |
| UNITED KINGDOM | $223K | -- | -$223K |
| JAPAN | $46K | $96K | +$50K |
| NETHERLANDS | -- | $96K | +$96K |
| HONG KONG | -- | $95K | +$95K |
Monthly import values over time
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