Aventurine
Aventurine, a semi-precious stone, worked or unworked
HSN 7103 99 43 (Aventurine) is not covered by a Bureau of Indian Standards Quality Control Order and carries no Partner Government Agency clearance requirement at the tariff-line level. Import follows the standard customs procedure: Importer-Exporter Code (IEC), bill of entry, commercial invoice, packing list. Other stones and articles within Chapter 71 — particularly precious metals, articles of jewellery, or cultured pearls — may be subject to distinct import conditions; classification accuracy against the precise product form and material is the principal importer risk.
The absence of compliance at this tariff line applies to aventurine in its loose, unset form; once mounted, set, or incorporated into an article of jewellery, the finished product moves into a different heading within Chapter 71 where separate compliance and valuation rules apply. Customs examination may query whether the stone is correctly distinguished from synthetic or reconstructed stones, which attract their own tariff lines. Retrospective re-classification to a more specific heading triggers fresh duty assessment and potential detention pending resolution.