Item of the Week

''Spider-Man 2'''s Kirsten Dunst has caught a $950 pink and yellow sapphire butterfly ring in her web. NYC-based Baby Doll Gems -- which specializes in colorful stones in unconventional settings -- also counts Halle Berry, Christina Aguilera, and Gwen Stefani as fans. ''Celebs like upscale, luxury goods,'' says designer Janet Tzou. ''But they also want something fun and unique.''