I just designed this gorgeous set of jewelry for a client as a gift for her daughter who loves crosses and black and blue. I found this stunning Taxco Mexican sterling silver cross with onyx inlay and I designed the statement necklace around it. She had mentioned her daughter was liking green lately as well, so I kept the necklace black and blue, but added green to the bracelet and earrings. I love the way they coordinate, but aren't matchy matchy.
As this was a custom design, it is not for sale, but I can recreate something similar.
Contact me if you are interested in this piece.