Analysis
HTS 7102.31.00 covers unworked or simply sawn, cleaved or bruted under heading 7102 (diamonds, whether or not worked, but not mounted or set).
The normal trade relations rate here is zero, shared by about 45% of the 108 tariff lines in chapter 71, a useful check when a neighbouring dutiable line is a candidate. Chapter 99 measures such as Section 301 or 232 can still apply on top, depending on where the goods come from.
Census statistics map these goods to NAICS 339910 (Jewelry and Silverware Manufacturing), an industry of 1,844 US establishments employing 19,188 people. That concordance is how imports of this line are compared with US output.
All 6 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 7102.10.00 | Diamonds, whether or not worked, but not mounted or set: unsorted | Free |
| 7102.21.10 | Unworked or simply sawn, cleaved or bruted: miners' diamonds | Free |
| 7102.21.30 | Simply sawn, cleaved or bruted | Free |
| 7102.21.40 | Other: other | Free |
| 7102.29.00 | Industrial: other | Free |
| 7102.39.00 | Nonindustrial: other | Free |