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• Pearl jewelry : industry taking off; Japan main source of cultured pearls while China of freshwater types.
• Costume jewelry : firms moving high end; upgraded line features more rhinestones, CZ and other trimmings.
• Plastic jewelry : competition strong in sideline industry; items no longer look plastic.
• Jewelry chains : countries upgrade products to raise profit margins, some also increase productivity.
• Costune jewelry : strong industries in most countries attract newcomers, making range ever more diverse.