Sub-Chapter2005200920102011
Pearls, natural or cultured $18,607$4,797$429
Diamonds, whether or not worked, but not mounted or set. $66,566$148,439$235,071
Precious stones (other than diamonds) and semi-precious stones$39,531,359$566,957$415,912$1,211,529
Synthetic or reconstructed precious or semi-precious stones$185,885$995$1,879$5,688
Dust and powder of natural or synthetic precious or semi-precious stones. $9,615$1,740$335
Silver (including silver plated with gold or platinum) $55,484$5,949$208,380
Base metals clad with silver $992 $20,745
Gold (including gold plated with platinum) $44,555$42,484$26,252
Base metals or silver, clad with gold, not further worked than semi-manufac ... $11$60 
Platinum, unwrought or in semi-manufactured forms, or in powder form. $4,061$11,772$10,865
Base metals, silver or gold, clad with platinum $504  
Articles of jewellery and parts thereof, of precious metal $32,903,906$37,680,741$41,568,987
Articles of goldsmiths' or silversmiths' wares $1,347,218$1,798,185$1,953,910
Other articles of precious metal or of metal clad with precious metal. $1,963$3,064$4,006
Articles of natural or cultured pearls, precious or semi-precious stones $2,514,815$2,661,123$2,135,929
Imitation jewellery. $1,909,407$2,075,147$2,308,027
Total$39,717,244$39,445,656$44,851,292$49,690,153