At this world-class designer boutique, a glittering diamond necklace costs only slightly more than an economy car. Pendants, collars, bracelets and rings are displayed in individual windows, with plenty of space allotted to each precious piece. For shoppers with less than a few million in the family account, Bvlgari offers watches and other small accessories. Of course people who simply want to have something by the label can purchase a bottle of fragrance for about $60.