While Cartier is still the most valued jewelry brand in the world, its luster has dulled a bit over the last year, dropping three spots in the ranking. The jeweler’s parent company, Richemont, said year-over-year jewelry sales decreased by 12% to 800 million euros ($1.1 billion) in the fourth quarter of 2008. Other high-end jewelers have suffered more, though: Fortunoff, Doris Panos Designs and Fred Leighton have all filed for bankruptcy protection in recent months.