I have the Hardwear graduated chain necklace in rose gold, the bracelet with diamond link in rose gold, the two links (one with diamond) in rose gold. I love Hardwear collection so much.
If you can only choose one. I would pick the bracelet. Then probably the two links necklace. The graduated chain necklace is so adorable too, it goes well with a simple tee or a T-shirt. But sometimes it may look "a lot" and chunky.
The bracelet is VERY versatile. I love how one link is in diamond. You can dress up or down.