Chunky Necklaces for my Bridesmaids?

I want my bridesmaids to have a funky, chunky kind of trendy necklace and earrings. That would be easy, except I also want it to be in my wedding colors, eggplant (any dark purple is fine) and shamrock green. My bridesmaids are wearing eggplant and my maid of honour is wearing green, so I want the jewelery to match so it kind of brings them together. I want it to be in the colors, as opposed to the silver that the shoes will be, to bring a little color to the neckline. Any suggestions for websites or stores that might sell what I'm looking for?