Rubies, sapphires, emeralds, alexandrite, and other natural gemstones in their raw, sawn, or roughly shaped state — but explicitly excluding diamonds — are captured here, making origin and treatment disclosure critical for accurate valuation. Stones at this stage have undergone minimal processing, so the distinction between 'simply sawn' and more advanced shaping is a recurring classification question that can shift a shipment to the worked-stones category. Heat treatment, irradiation, or fracture-filling applied prior to export does not change the classification but must be disclosed on commercial documentation for grading and valuation purposes. Importers sourcing colored gemstones should be aware that country-of-origin rules for natural stones follow the country of mining, not the country of cutting.

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