Precious and semi-precious stones, synthetic or reconstructed, worked, whether or not graded but not strung, mounted or set, ungraded synthetic or reconstructed precious or semi-precious stones, temporarily strung for convenience of transport (excl. stones simply sawn or roughly shaped, piezo-electric quartz)
Pietre sintetiche o ricostituite, lavorate, anche assortite (ma non infilate né montate né incastonate), pietre sintetiche o ricostituite, lavorate (non assortite), infilate temporaneamente per comodità di trasporto (escl. quelle semplicemente segate o sgrossate e quarzo piezoelettrico)