Diamonds, synthetic or reconstructed, worked, whether or not graded but not strung, mounted or set, ungraded diamonds, temporarily strung for convenience of transport (excl. diamonds simply sawn or roughly shaped)
Precious and semiprecious stones, synthetic or reconstructed, worked, whether or not graded but not strung, mounted or set, ungraded synthetic or reconstructed precious or semiprecious stones, temporarily strung for convenience of transport (excl. stones simply sawn or roughly shaped, piezoelectric quartz and diamonds)